Question

Вычислите: 3 5/7-1 11/21+2 5/14

Answer 1

$3 frac{5}{7} - 1frac{11}{21} +2frac{5}{14} = 3frac{30}{42} -1 frac{22}{42} +2frac{15}{42} = 2 frac{8}{42} +2frac{15}{42} = 4 frac{23}{42}$

Answer 2

3 5/7-1 11/21+2 5/14=3 30/42-1 22/42+2 15/42=4 23/42