(18 7/12+3 1/5)-7 5/12

Question

(18 7/12+3 1/5)-7 5/12

Answer 1

Сгруппируем 18 7/12 - 7 5/12 + 3 1/5= 11 2/12 + 3 1/5= 11 1/6 + 3 1/5= 11 5/30 + 3 6/30= 14 11/30