3 1/8•(5 1/3-3,2)+4 2/3-2,5=8 5/6
1)5 1/3-3,2=5 1/3-3 2/10=5 10/30-
3 6/30=2 4/30=2 2/15
2)3 1/8•2 2/15=25/8•32/15=20/3=
6 2/3
3) 6 2/3+4 2/3=11 1/3
4)11 1/3-2,5=11 1/3-2 5/10=11 10/30-
2 15/30=8 5/6
1) 34-27=7
2) 7*8=56
3)36:9=4
4)4*5=20
5)20+56=76
Ответ:76
1 1/3 + 730 + 2 3/5 = 733 + 1/3 + 3/5 = 733 + 5/15 + 9/15 = 733 целых 14/15
2 5/6 - (1 1/3 - 1/2) = 2 5/6 - (1 2/6 - 3/6) = <span>2 5/6 - 1 2/6 + 3/6 =
= 1 целая (5-2+3)/6 = 1 целая 6/6 = 2
1 1/2 - 3/4 + 7/8 = 1 4/8 - 6/8 + 7/8 = 1 целая + (4-6+7)/8 = 1 целая 5/8</span>
Решение:5-1=4 на 4 коровы больше!
<span>-5,13:(3 1/4+2/3·(-1,5))-2 18/25=-5
1) 2/3·(-1,5)=²/₃·(-¹⁵/₁₀)=(-2·15)/(3·10)=-1
2) 3 ¹/₄ +(-1)=3,25-1=2,25
3) -5,13:2,25=- ⁵¹³/₁₀₀ : ²²⁵/₁₀₀=-⁵¹³/₂₂₅=-2 ⁶³/₂₂₅
4) -2 ⁶³/₂₂₅- 2 ¹⁸/₂₅=-4-(⁶³/₂₂₅+¹⁸/₂₅)=-4-((63+18·9)/225)=-4-(225/225)=-4-1=-5</span><span />