Question

решите пример с дробями по действиям 5 5/7:8/21+1 6/7:(43/56-11/24)

Answer 1

43/56 - 11/24 = 129/168 - 77/168 = 52/168 = 13/42;
1 6/7 : 13/42 = 13/7 • 42/13 = 6;
5 5/7 : 8/21 = 40/7 • 21/8 = 15;
15 + 6 = 21