Question

please please please give me fast​

Answer 1

Step-by-step explanation:

a) 5/9 = 4/5

By cross multiplication we get,

5 × 5 = 9 × 4

25 is not equal to 36.

b) 9/16 = 5/9

By cross multiplication we get,

9 × 9 = 16 × 5

81 is not equal to 80.

c) 4/5 = 16/20

By cross multiplication we get

4 × 20 = 5 × 16

80 = 80

d) 1/15 = 4/30

By cross multiplication we get,

30 = 15 × 4

30 is not equal to 60.

So only option c is correct