решите (1 1/5+2 3/10):1/2+(6 3/4-2 2/3):1 1/6=
решите (1/6+1/10+1/15):(3/5-1/3-1/4)=
решите70*(5/8+5/6)+(3 1/9-1/30)*(3/10)2=

 (11/5+23/10):1/2+(63/4-22/3):11/6=(22/10+23/10):1/2+(189/12-88/12):11/6=45/10:1/2+101/12:11/6=(45*2)/10+(101*6)/(12*11)=90/10+606/132=9+101/22=17 целых 13/22 в остатке(1/6+1/10+1/15):(3/5-1/3-1/4)=(5/30+3/30+2/30):(36/60-20/60-15/60)=10/30:1/60=(10*60)/30=600/30=2070*(5/8+5/6)+(31/9-1/30)*(3/10)2=70*(30/48+40/48)+(930/270-9/270)*3/5=70/48+(921/270)*3/5=70/48+921/450=(31500+44208)/21600=75708/21600=3,505