(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 + 1 2/5 = 4 25/35 + 1 14/35 = 5 39/35 = 6 4/35
2) 6 4/35 : 15 2/7 = 214/35 * 7/107 = 2/5 
3) 2/5 : 1 1/15 = 2/5 * 15/16 = 3/8 = 0,375