Вычислите1)(1/4-2/3)*(4/5-2/15)*(-3/5)

Question

Вычислите1)(1/4-2/3)*(4/5-2/15)*(-3/5)

Answer 1

=(3/12-8/12)*(12/15-2/15)*(-3/5)=(-5/12)(2/3)(-3/5)=30/180=1/6