5/6-(3/10+2/5)=5/6-(3/10+4/10)=5/6-7/10=50/60-42/60=8/60=2/15
(3/4+1/8)-5/8 = (6/8+1/8)-5/8=7/8-5/8=2/8=1/4
5/6-(3/10+2/5)
1) 0.3+0.4=0.7
2) 5/6=0.83
3)0.83-0.7=0.13
ответ:0.13
(3/4+1/8)-5/8 = (6/8+1/8)-5/8=7/8-5/8=2/8=1/4
1)3/4=0.75
2)1/8=0.125
3)0.75+0.125=0.825
4)5/8=0.625
5)0.825-0.625=0.2
ответ:0.2
