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nastyahristoforova43
@nastyahristoforova43
July 2022
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Помогите решить ! 1) 5 целых + (- 2 целых 1/2) 2) - 2 целых : 5 целых 1/3 - 7/10: 1целую 1/15 3) 2 целых 1 /5 * 1/3 + (-3/10):4целых 1/2 4) 3/7-(1целая1/4 -1целая1/8*2/9).
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tomato2007
1)5-2 1/2=2 1/2
2)-2:5 1/3-7/10:1 1/15=-9/32
3)11/5*1/3-3/10*2/9=2/3
4)3/7-5/4-9/8*2/9=-1 1/14
3 votes
Thanks 3
ирэн79
1) 5+(-2 1/2)=4 2/2-2 1/2=2 1/2
2)-2:5 1/3-7/10:1 1/15=9/32
1)-2/1:16/3=-2/1•3/16=-3/8
2)-7/10:1 1/15=-7/10•15/16=-21/32
3)-3/8+21/32=-12/32+21/32=9/32
3)2 1/5•1/3+(-3/10):4 1/2=2/3
1)2 1/5•1/3=11/5•1/3=11/15
2)-3/10:4 1/2=-3/10•2/9=-1/15
3)11/15-1/15=10/15=2/3
4)3/7-(1 1/4-1 1/8•2/9)=-4/7
1)1 1/8•2/9=9/8•2/9=1/4
2)1 1/4-1/4=1
3)3/7-1=3/7-7/7=-4/7
2 votes
Thanks 2
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Answers & Comments
2)-2:5 1/3-7/10:1 1/15=-9/32
3)11/5*1/3-3/10*2/9=2/3
4)3/7-5/4-9/8*2/9=-1 1/14
2)-2:5 1/3-7/10:1 1/15=9/32
1)-2/1:16/3=-2/1•3/16=-3/8
2)-7/10:1 1/15=-7/10•15/16=-21/32
3)-3/8+21/32=-12/32+21/32=9/32
3)2 1/5•1/3+(-3/10):4 1/2=2/3
1)2 1/5•1/3=11/5•1/3=11/15
2)-3/10:4 1/2=-3/10•2/9=-1/15
3)11/15-1/15=10/15=2/3
4)3/7-(1 1/4-1 1/8•2/9)=-4/7
1)1 1/8•2/9=9/8•2/9=1/4
2)1 1/4-1/4=1
3)3/7-1=3/7-7/7=-4/7