помогите N1133 по действиям. Created by 88878. matematika-ru

помогите N1133 по действиям...

88878 @88878

July 2022 1 4 Report

помогите N1133 по действиям

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гюйс

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1. ........................=1 2/3

1) 2 2/3:2=8/3 * 1/2=4/3=1 1/3
2) 4/15+2/5=4/15+6/15=10/15=2/3
3) 3 1/3 * 3/5=10/3 * 3/5=2
4) 2/3 : 2=2/3*1/2=1/3
5) 1 1/3+1/3=1 2/3

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2. .......................=8 1/20

1) 2 : 1/4=2/*4=8
2) 1 1/2+2 2/3=1 3/6+2 4/6=3 7/6=4 1/6
3) 4 1/6 : 3 3/4=25/6 : 15/4=25/6 * 4/15=10/9=1 1/9
4) 1 1/9 - 2/3=1 1/9 - 6/9=10/9-6/9=4/9
5) 4/9 : 8 8/9=4/9 : 80/9=4/9 * 9/80=1/20
6) 8+1/20=8 1/20

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3. ........................=3

1) 7/8 - 3/5=35/40 - 24/40=11/40
2) 2/3+1/2=4/6+3/6=7/6
3) 60 : 4 5/7=60 : 33/7=60 * 7/33=140/11
4) 11/40 * 140/11=7/2
5) 7/2 : 7/6=7/2 * 6/7=3

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4. .........................=1 5/12

1) 1 1/6 : 1 5/9=7/6 : 14/9=7/6 * 9/14=3/4
2) 3 1/4+3/4=3 4/4=4
3) 4 : 2 2/7=4 : 16/7=4 * 7/16=7/4=1 3/4
4) 5 1/9 : 7 2/3=46/9 : 23/3=46/9 * 3/23=2/3
5) 1 3/4+2/3=1 9/12+8/12=1 17/12=2 5/12

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