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Polinytina17121
@Polinytina17121
April 2021
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Ребята , пожалуйста решите 2 вариант . Ооочень срооочно
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джемани06
1.а)2,01+5 1/4=2,01+5,25=7,26
б)9,5-1 1/7=9 1/2-1 1/7=9 7/14-1 2/14=8 5/14
в)5,4×3 1/3=5 2/5×3 1/3=27/5×10/3=18
г)5 1/2÷0,11=11/2÷11/100=11/2×100/11=50
д)(3/4+0,9)÷0,3=(0,75+0,9):0,3=1,65÷0,3=5,5
4.(4,5÷1/5-5/8÷0,75)×2,3-3 2/3×2,3=21 2/3×2,3-3 2/3×2,3=(21 2/3-3 2/3)×2,3=18×2,3=41,4
1)4,5÷1/5=45/10÷1/5=9/2×5/1=45/2=22 1/2
2)5/8÷0,75=5/8÷3/4=5/8×4/3=5/6
3)22 1/2-5/6=22 3/6-5/6=21 9/6-5/6=21 4/6=21 2/3
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Polinytina17121
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джемани06
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Answers & Comments
б)9,5-1 1/7=9 1/2-1 1/7=9 7/14-1 2/14=8 5/14
в)5,4×3 1/3=5 2/5×3 1/3=27/5×10/3=18
г)5 1/2÷0,11=11/2÷11/100=11/2×100/11=50
д)(3/4+0,9)÷0,3=(0,75+0,9):0,3=1,65÷0,3=5,5
4.(4,5÷1/5-5/8÷0,75)×2,3-3 2/3×2,3=21 2/3×2,3-3 2/3×2,3=(21 2/3-3 2/3)×2,3=18×2,3=41,4
1)4,5÷1/5=45/10÷1/5=9/2×5/1=45/2=22 1/2
2)5/8÷0,75=5/8÷3/4=5/8×4/3=5/6
3)22 1/2-5/6=22 3/6-5/6=21 9/6-5/6=21 4/6=21 2/3