Вычислите a) 4 4/15 - 1 7/12 , б) 4 3/22 * 2 5/14

Question

Вычислите
a) 4 4/15 - 1 7/12 ,
б) 4 3/22 * 2 5/14

Answer 1

А) 4 4/15 - 1 7/12 = 4 16/60 - 1 35/60 = 2 41/60
Б) 4 3/22 * 2 5/14 = 91/22 * 33/14 = 13/2 * 3/2 = 39/4 = 9 3/4