Pre-Algebra Review 1-5

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A _____________ is any number that can be expressed in to form a/b where a and b are ________ and b does not equal ___.

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25 Terms

1

A _____________ is any number that can be expressed in to form a/b where a and b are ________ and b does not equal ___.

rational number/integers/0

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2

What term(s) describe 56/99

rational number

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3

what term(s) describe -5,003

integer/rational number

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4

what term(s) describe -800.7

rational number

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5

Write this in rational form: -960

-960/1

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6

write this in rational form: 5 11/17

96/17

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7

find the lcm: 14a^2bc and 21a^3b

42a^3bc

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8

find the lcd: 9n/14p^3r and 3w/49n^2p^2

98n^2p^3r

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9

rename this set of fractions using the lcd: -4 19/20, 5/9, and -7/12

-4 171/180, 100/180, and -105/180

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10

write in order from least to greatest: -2/3, -.67, and -5/8

-.67, -2/3, and -5/8

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11

-3/4 - (-5/7)

-1/28

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12

6/25 - (-1.83)

2.07

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13

9/14 (2/3 + 7/18)

19/28

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14

46.8/-2.4

19.5

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15

-3.8 + 1.7/(-1.6)(-.75)

21/80

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16

Carmella has a length of 24 feet of wallpaper border. She wants to put the border around the walls of a room with dimensions of 61 ¾ inches and 71 1/8 inches. Estimate how much border she needs. Does she have enough of the border?

Yes

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17

Jon makes pillow covers. Each pillow cover uses ¾ yard of fabric. How many complete pillows can he make from 7 1/8 yards of fabric?

9 pillow covers

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18

c/12 = 72/96; find c

c = 9

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19

.75; write as a fraction

3/4

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20

find the lcm; 9 and 24

72

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21

LCD; 25/36 and 77/81

324

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22

rename the fractions using LCD; -4 19/20, 5/9, -7/12

-4 171/180, 100/180, -105/180

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23
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