7th Math Chapter 6 Review

Simplifying your Life

100

24/48

1/2

200

45/54

5/6

300

108/132

9/11

400

21/4

5 1/4

500

36/8

4 1/2

CHECK THAT PROPORTION!

100

6/9 = 8/12

72, 72, True

200

3/9 = 7/21

63, 63, True

300

7/12 = 17/30

204, 210, False

400

25/15 = 60/36

900, 900, True

500

40/100 = 27/70

2800, 2700, False

What's Missing?

100

10/12 = n/18

n = 15

200

6/10 = 15/n

n = 25

300

n/21 = 5/15

n = 7

400

15/n = 25/35

n = 21

500

5/n = 18/25

n = 6 17/18

Fractions to %'s

100

86/100

86%

200

35/50

70%

300

19/20

95%

400

3/10

30%

500

17/25

68%

Finding Percents

100

25% of 44

11

200

32% of 16

5.12

300

44 x 79%

34.76

400

68% of 138

93.84

500

57 x 99%

56.43

Money Money Money

100

$30.00 decreased by 15%

$25.50

200

$65.00 decreased by 30%

$45.50

300

$55.00 increased by 20%

$66.00

400

$28.95 decreased by 6%

$27.21

500

$16.95 increased by 4%

$17.63