(4 5/7+1 2/5):15 2/7:1 1/15

Question

(4 5/7+1 2/5):15 2/7:1 1/15

Answer 1

1) 4.5/7+12/5=4.25/35+84/35=4.109/35.
2)249/35•1/15=249/525...



1)2/7:11/15=2/7•15/11=30/77.