Question

a)x/21=6.4/48
b) 1 1/7:x=0.8:14
c) 5x:20=1/2:12

Answer 1

x/21 = 6.4/48
48x = 6.4*21
x = 134,4/48
x = 2,8

1 1/7:x = 0.8:14
0.8x = 1 1/7 * 14
x = 16/0.8
x = 20

5x:20 = 1/2 : 12
60x = 1/2 * 20
x = 10/60
x = 1/6

Answer 2

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