(5 3/5- 1 1/3):( 7 7/12 - 2 1/4)· 1, 25

Question

(5 3/5- 1 1/3):( 7 7/12 - 2 1/4)· 1, 25

Answer 1

5 3/5-1 1/3=28/5-4/3=84/15-20/15=64/15

7 7/12-2 1/4=91/12-9/4=91/12-27/12=64/12

64/15÷64/12=64/15×12/64=4/5

4/5×1.25=4/5×1 1/4=4/5×5/4=1