Вычислите: 3\8:7\13+3 1\7*3\11=

Question

Вычислите: 3\8:7\13+3 1\7*3\11=

Answer 1

3/8 : 7/13 + 3 1/7 * 3/11 = 1 31/56

1) 3/8 : 7/13 = 3/8 * 13/7 = 39/56
2) 3 1/7 * 3/11 = 22/7 * 3/11 = 6/7
3) 39/56 + 6/7 = 39/56 + 48/56 = 87/56 = 1 31/56