Question

решите пожалуйста!!! (3/4+1/6) * 3 +(5/6-1/2) :2/9, (7/15+7/30+4/5) : (2-1/3-1/2), 17:(3/5+1/4)+(7/8-1/4)*(4/5)2 в квадрате

Answer 1

(3*312+2/12)*3+(5*2/12-612): 29=9/12*3+4/12*9/2=9/4+64=15/4=3 3/4

(7*230+7/30+4*6/30):(12/6-2/6-36)=45/30:7/6=45/30*6/7=45/35=1 1035=
1 2/7

17:(3*4/20+5/20)+(78-28)*1625=17:17/20+5/8*16/25=20+2/5=20 2/5