(3-3/7):(1/14+1/4) ВЫЧИСЛИТЕ: (3-3/7):(1/14+1/4)
(3-3/7):(1/14+1/4)=8 1) 3-3/7=18/7=2 4/7 2) 1/14+1/4=9/28 3) 18/7÷9/28=8