Question

7 : ( 5/8 + 5/6 ) + ( 3 1/9 - 1/3) * ( 3/10 ) решение

Answer 1

7:(30/48+40/48)+(28/9-3/9)*3/10=7:70/48+25/9*3/10=7/1*48/70+25/30=48/10+25/30=144/30+25/30=169/30=5   19/30