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CatMots
@CatMots
July 2022
2
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НАЙДИТЕ ЗНАЧЕНИЕ ВЫРАЖЕНИЯ : а) 3/7 * (1/3 + 4/9 ) б) 4/5 - 1/4 : 5/6 . ПОМОГИТЕ ПРОШУ , ДАМ 34 БАЛЛА .
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tlq
3/7*(1/3+4/9)
3/7*7/9
1/3
4/5-1/4:5/6
4/5-1/4*6/5
4/5-1/2*3/5
4/5-3/10
1/2
2 votes
Thanks 3
assimptota
1. 1/3+4/9=7/9
2. 1/4:5/6=1/4*6/5=3/10
3. 3/7*7/9=1/3
4.1/3-4/5=5/15-12/15=-7/15
5.-7/15-3/10=-28/60-18/60=-46/60=-23/30
Ответ: -23/30
0 votes
Thanks 0
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Answers & Comments
3/7*7/9
1/3
4/5-1/4:5/6
4/5-1/4*6/5
4/5-1/2*3/5
4/5-3/10
1/2
2. 1/4:5/6=1/4*6/5=3/10
3. 3/7*7/9=1/3
4.1/3-4/5=5/15-12/15=-7/15
5.-7/15-3/10=-28/60-18/60=-46/60=-23/30
Ответ: -23/30