5.64+9.036:18-0.86=5.282
1)9.036:18=0.502
2)5.64-0.502=6.142
3)6.142-0.86=5.282
<span>2,8+21,28:(21,2-13,6)=5.6
1)21.2-13.6=7.6
2)21.28:7.6=2.8
3)2.8=2.8=5.6
</span>
А) 91 1/6 + 3 5/18 = 94 4/9
б) 1 4/15 + 2 3/20 = 3 5/12
в) 5 1/8 + 41 7/12 = 46 17/24
г) 39 5/6 + 12 5/9 = 52 7/18
д) 36 5/7 + 12 7/8 = 49 33/56
е) 5 2/3 + 3/4 = 6 5/12
ж) 4 + 3 3/7 = 7 3/7
з) 8 7/9 +3 = 11 7/9
5 2/5 : 3/5 = 9 (част.)
Ответ: получилось 9 частей.
3/4х-2/3х-1/2х= 1/6-1 9/12х-8/12х-6/12х=5/6 1/12х-6/12=5/6 -5/12х=5/6 х= -2