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ангел292
@ангел292
August 2022
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помогите вычислите в обыкновеннвх дробях
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piksaeva85znayka
1)4,55-3 7/15=4 55/100-3 7/15=4 11/20-3 7/15=4 33/60-3 28/60=1 5/60=
=1 1/12
2)2,75+1 5/6=2 75/100+1 5/6=2 3/4+1 5/6=2 18/24+1 20/24=3 38/24=
=4 14/24=4 7/12
3)1 1/12÷3,25=1 1/12÷3 25/100=13/12÷3 1/4=13/12÷13/4=13/12×4/13=
=1/3×1/1=1/3
4)4 7/12×6/11=55/12×6/11=5/2×1/1=5/2=2 1/2
5)1/3+2 1/2=2/6+2 3/6=2 5/6
6)4 3/8×4/15=35/8×4/15=7/2×1/3=7/6=1 1/6
7)2 5/6÷1 1/6=17/6÷7/6=17/6×6/7=17/1×1/7=17/7=2 3/7
Ответ примера : 2 3/7
1 votes
Thanks 2
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Answers & Comments
=1 1/12
2)2,75+1 5/6=2 75/100+1 5/6=2 3/4+1 5/6=2 18/24+1 20/24=3 38/24=
=4 14/24=4 7/12
3)1 1/12÷3,25=1 1/12÷3 25/100=13/12÷3 1/4=13/12÷13/4=13/12×4/13=
=1/3×1/1=1/3
4)4 7/12×6/11=55/12×6/11=5/2×1/1=5/2=2 1/2
5)1/3+2 1/2=2/6+2 3/6=2 5/6
6)4 3/8×4/15=35/8×4/15=7/2×1/3=7/6=1 1/6
7)2 5/6÷1 1/6=17/6÷7/6=17/6×6/7=17/1×1/7=17/7=2 3/7
Ответ примера : 2 3/7