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- 340
- à 3.6è Changing Fractions to Decimal Form.
- äèPlease change the following fractions to Decimal Form
- êê and round the answers to the nearest thousandths place.
- âêêêêè.375
- #êêêï3êè ┌───────êêè 3
- #ïChange the fraction, ─êï8 │ 3.000êë Thus, ─ï=ï.375
- #êêêï8êë ╩╪╠╪╪êêë8
- #ïto Decimal Form.êêê60è ┌──¥ ╠╚
- #êêêêêè ═╬╪è│
- #êêêêêë40 ──┘
- éS To change the fraction,ï3/8, to Decimal Form, you should
- #divide the bottom into the top.è ┌────
- #êêêêë8 │ 3
-
- Since the directions say to round answers to the nearest thousandths, we
- will have to add zeros out to the ten-thousandths place.
- #êêêêë ┌────────
- #êêêêè 8 │ 3.0000
-
- Now, you should divide as was done in earlier problems involving decimal
- numbers.êêêê .3750
- #êêêêë ┌────────
- #êêêêè 8 │ 3.0000
- #êêêêê ╩╪╠╪╪╪ë The answer rounded to
- êêêêêè60ê the nearest thousandths
- #êêêêêè═╬╪╪ë place is .375
- êêêêêè 40
- #êêêêêè ╠╚╪
- êêêêêë 0
-
- Thus, the Decimal Form of the Fraction,ï3/8, is .375.
- 1êêêï4
- #êêêèChangeï─ïto decimal form.
- êêêêè 5
-
- êA)ï.945êèB)ï.8êëC)ï.875êèD)ïå
- ü
-
- êêêêê.800êë4
- #êêêêè ┌───────êè ─è=è.8
- #êêêêï5 │ 4.000êë5
- #êêêêë ╠╪╚╪╪
- Ç B
- 2êêê 3
- #êêê Changeï──ïto decimal form.
- êêêêï10
-
- êA)ï.496êèB)ï.395êèC)ï.3êëD)ïå
- ü
-
- êêêêê.300êë3
- #êêêêè ┌───────êè──è=è.3
- #êêêê 10 │ 3.000êè 10
- #êêêêë ╦╪╚╪╪
- Ç C
- 3êêê 7
- #êêêïChangeï─ïto decimal form.
- êêêêè8
-
- êA)ï.875êèB)ï.786êèC)ï.912êèD)ïå
- ü
-
- êêêêê.875êë7
- #êêêêè ┌───────êè ─è=è.875
- #êêêêï8 │ 7.000êë8
- #êêêêë ╬╪╠╪╪
- êêêêê 60
- #êêêêê ═╬╪
- êêêêêï40
- #êêêêêï╠╚
- Ç A
- 4êêêï11
- #êêêèChangeï──ïto decimal form.
- êêêêè 20
-
- êA)ï.445êèB)ï.455êèC)ï.55êè D)ïå
- ü
-
- êêêêê .5500êï11
- #êêêêè ┌─────────ê ──è=è.55
- #êêêê 20 │ 11.0000êï20
- #êêêêë ╔╚╪╚╪╪╪
- êêêêê1 00
- #êêêêê╔╪╚╚╪╪
- êêêêêë0
- Ç C
- 5êêêè7
- #êêêèChangeï──ïto decimal form.
- êêêêè 16
-
- êA)ï.438êèB)ï.437êèC)ï.4485êïD)ïå
- ü
-
- êêêêê.4375êïThe answer rounded to
- #êêêêè ┌────────ê the nearest thousandths
- #êêêê 16 │ 7.0000êïplace is .438
- #êêêêë ╬╪╠╪╪╪
- êêêêê 60
- #êêêêê ╠╨╪╪
- êêêêê 120
- #êêêêê ╔╔╩╪
- êêêêêè80
- #êêêêêè╨╚
- Ç A
- 6êêêï17
- #êêêèChangeï──ïto decimal form.
- êêêêè 32
-
- êA)ï.435êèB)ï.531êèC)ï.532êèD)ïå
- ü
-
- êêêêê .5312êïThe answer rounded to
- #êêêêè ┌────────ê the nearest thousandths
- #êêêê 32 │ 17.0000êïplace is .531
- #êêêêë ╔╬╪╪╪╪╪
- êêêêê1 00
- #êêêêê╪╪╤╬╪╪
- êêêêêè40
- #êêêêêï╪╦╩╪
- êêêêêè 80
- #êêêêêè ╬╠
- êêêêêè 16
- Ç B
- 7êêêè9
- #êêêèChangeï──ïto decimal form.
- êêêêè 16
-
- êA)ï.573êèB)ï.574êèC)ï.563êèD)ïå
- ü
-
- êêêêê.5625êïThe answer rounded to
- #êêêêè ┌────────ê the nearest thousandths
- #êêêê 16 │ 9.0000êïplace is .563
- #êêêêë ╨╪╚╪╪╪╪
- êêêêë 1 00
- #êêêêë ╪╪╤╬╪╪
- êêêêêï40
- #êêêêê ╪╦╩╪
- êêêêêè80
- #êêêêêè╨╚
- Ç C
- 8êêêè 3
- #êêêèChangeï7 ─èto decimal form.
- êêêêë 4
-
- êA)ï7.35êèB)ï7.75êèC)ï7.85êèD)ïå
- ü
- êêêêê.7500êïThe answer rounded to
- #è First, find theêë ┌────────ê the nearest thousandths
- #decimal expansion forêï4 │ 3.0000êïplace is 7.75
- #the fractional part.êê╩╪╨╪╪╪
- Then add 7 to thisêêè 20
- #decimal expansion.êêè╪╩╚╪╪
-
- Ç B
- 9êêêë7
- #êêêèChangeï4 ──ïto decimal form.
- êêêêë 16
-
- êA)ï4.438êïB)ï7.438êïC)ï4.738êïD)ïå
- ü
- êêêêê.4375êïThe answer rounded to
- #è First, find theêë ┌────────ê the nearest thousandths
- #decimal expansion forê 16 │ 7.0000êïplace is 4.438
- #the fractional part.êê╬╪╠╪╪╪
- Then add 4 to thisêêè 60
- #decimal expansion.êêè╪╠╨╪╪
- êêêêê 120
- #êêêêê ╔╔╩╪
- êêêêêè80
- #êêêêêè╨╚
- Ç A
- äè Please write the following fractions in decimal form
- using the "bar" notation.
- â
- êêë 5
- #êëWriteï──ïin decimal form using the "bar" notation.
- êêë11
- #êêêêêêê╪╪
- êêë 5/11è=è.454545∙∙∙è=è.45
- éS Many fractions likeï3/4ïandè3/8ïhave decimal expansions
- that divide evenly.
- êêë 3êêë3
- #êêë ─è=è.75èandè─è=è.375
- êêë 4êêë8
- These fractions, that divide evenly, are said to have terminating
- decimal expansions.ïOther fractions likeï1/3ïandï5/11ïhave
- decimal expansions that continue.
- êêêê1
- #êêêê─è=è.3333∙∙∙
- êêêê3
-
- êêêê5
- #êêêë ──è=è.454545∙∙∙
- êêêë 11
- These patterns keep going forever.ïFractions like this are said to
- have repeating decimal expansions.ïA convenient notation for this
- kind of number is the "bar" notation.ïJust put a bar over the repeating
- #numbers.êë 1êêêï╪
- #êêê─è=è.3333∙∙∙è=è.3
- êêê3
-
- #êêê5êêêè ╪╪
- #êêë ──è=è.454545∙∙∙è=è.45
- #êêë 11è ╪êêêë ╪╪
- Thus,ï1/3ïis equal toï.3ïandï5/11ïis equal toï.45
- 10ê 4
- #êè Writeï─ïin decimal form using the "bar" notation.
- êêè 9
-
- #êè ╪╪êêè╪╪êêè╪
- ë A)ï.29êëB)ï.36êëC)ï.4êè D)ïå
- ü
- êêêêë .444∙∙∙
- #êêêêè┌─────────
- #êêêê 9 │ 4.0000ê The "bar" notation for
- #êêêêë╦╪╬╪╪êêê╪
- êêêêê40êè.444∙∙∙ is .4
- #êêêêê╦╬╪
- êêêêê 40
- Ç C
- 11êï1
- #êè Writeï── in decimal form using the "bar" notation.
- êêè 18
-
- #êè ╪╪êêè ╪êêè╪╪╪
- ë A)ï.18êëB)ï.05êëC)ï.056êïD)ïå
- ü
- êêêêë .0555∙∙∙
- #êêêêè┌─────────
- #êêêê18 │ 1.0000ê The "bar" notation for
- #êêêêë╪╪╤╚╪╪êêê ╪
- êêêêê100êï.0555∙∙∙ is .05
- #êêêêê╪╤╚╪
- êêêêê 100
- Ç B
- 12êï3
- #êè Writeï── in decimal form using the "bar" notation.
- êêè 11
-
- #êè ╪╪êêè╪êêè╪╪
- ë A)ï.27êëB)ï.3êëC)ï.11êèD)ïå
- ü
- êêêêë .2727∙∙∙
- #êêêêè┌─────────
- #êêêê11 │ 3.0000ê The "bar" notation for
- #êêêêë╩╪╩╪╪╪êêê╪╪
- êêêêê 80êï.2727∙∙∙ is .27
- #êêêêê╪╧╧╪
- êêêêêï30
- #êêêêêï╩╩
- êêêêêè8
- Ç A
- 13êï7
- #êè Writeï── in decimal form using the "bar" notation.
- êêè 15
-
- #êè ╪╪êêè ╪êêï╪╪
- ë A)ï.46êëB)ï.46êè C)ï.15êèD)ïå
- ü
- êêêêë .4666∙∙∙
- #êêêêè┌─────────
- #êêêê15 │ 7.0000ê The "bar" notation for
- #êêêêë╬╪╚╪╪╪êêê ╪
- êêêêë1 00êè.4666∙∙∙ is .46
- #êêêêê╤╚╪╪
- êêêêê100
- #êêêêê╪╤╚╪
- êêêêê 100
- Ç B
- äè Please change the following decimal numbers to fraction
- êêïform.
- âêêêê6ê3
- #êêêè .6è=è──è=è─
- êêêêë 10ê5
-
- êêêêê395ê 79
- #êêêï.395è=è────è=è───
- êêêêë 1000ê200
- éS To writeï.6ïin fraction form, you should just read the number.
- For example,ï.6ïis read "six tenths".ïThusï.6ïis equal toï6/10.
- This fraction can be reduced.
- êêêêêï6ê3
- #êêêë .6è=è──è=è─
- êêêêê 10ê5
- The number, .395, is read three hundred ninety-five thousandths.ïThus,
- .395 is equal toï395/1000.ïThis fraction can be reduced.
- êêêêêè395ê 79
- #êêêë.395è=è────è=è───
- êêêêêï1000ê200
- ï14
- êêêChange .3 to fraction form.
-
- êï1êêï1êêè3
- #ëA)ï─êëB)ï─êëC)ï──êëD)ïå
- êï5êêï3êêï10
- ü
-
- êêêêêë3
- #êêêêï.3è=è──
- êêêêêè 10
- Ç C
- ï15
- êêêChange .97 to fraction form.
-
- êè9êêè97êê 7
- #ëA)ï──êëB)ï───êèC)ï──êëD)ïå
- êï10êêï100êê10
- ü
-
- êêêêêë97
- #êêêê .97è=è───
- êêêêêè 100
- Ç B
- ï16
- êêêChange .75 to fraction form.
-
- êï3êêè4êêï3
- #ëA)ï─êë B)ï─êëC)ï─êë D)ïå
- êï4êêè3êêï5
- ü
-
- êêêêê75ê3
- #êêêè.75è=è───è=è─
- êêêêë 100ê4
- Ç A
- ï17
- êêêChange .425 to fraction form.
-
- êï16êêï17êê 19
- #ëA)ï──êëB)ï──êè C)ï──êëD)ïå
- êï33êêï40êê 50
- ü
-
- êêêêê425ê17
- #êêêï.425è=è────è=è──
- êêêêë 1000ê40
- Ç B
-
-
-