Question

(1 целых 8/13 * 13/42 + 5 целых 5/7 : 8/21) : (8 целых 1/8 + 3 целых 1/2) = ?

Answer 1

Решение по действиям:
1) 21/13 * 13/42 = 1/2
2) 40/7 : 8/21 = 15
3) 1/2 + 15 = 15 1/2 = 31/2     
4) 65 /8 + 7/2 = 65/8 + 28/8 = 93/8
5) 31/2 : 93/8 = 4/3 = 1 1/3