Г) 1/5+1/7-1/9 д) 13/18-1/24-(29/72+6/36) е) (7/8-4/5)+(1/20+1/4)+1/2 - вопрос №42989601517191318124297263678451201412 от marrycat1 30.08.2020 09:04

Question

Математика: Г) 1/5+1/7-1/9 д) 13/18-1/24-(29/72+6/36) е) (7/8-4/5)+(1/20+1/4)+1/2

marrycat1 · Answer

Г)1/5+1/7-1/9=0.61/5=0.21/7=0.151/9=1.110.2+0.15=0.170.17-0.11=0.6д) 13/18-1/24-(29/72+6/36)=0.10829/72=0.406/36=0.170.40+0.17=0.5713/18=0.721/24=0.0420.72-0.042=0.6780.678-0.57=0.108в)(7/8-4/5)+(1/20+1/4)+1/2=0.97/8=0.94/5=0.80.9-0.8=0.11/20=0.051/4=0.050.05+0.25=0.30.1+0.3=0.41/2=0.50.4+0.5=0.9...