Question

compare the following pairs of ratio 9/13,11/15,3/7,8/13,18/11,15/8​

Answer 1

Answer:

a) 9/13 = 11/15

by cross multiplication,

9×15 = 13×11

135 is less than 143

so 9/13 < 11/15

b) 3/7 = 8/13

3×13 = 7×8

39 < 56

so 3/7 < 8/13

c) 18/11 = 15/8

18×8 = 11×15

144 < 165

so 18/11 < 15/8