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Bloom1773
@Bloom1773
June 2022
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ребят, помогите решить 4 и 5 вариант 4
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fanta2310
Verified answer
(11 * 1/9) : 2/9 - (11/8 : 2/3) : 2 = 4 15/32
1) 11 * 1/9 = 11/9
2) 11/8 : 2/3 = 11/8 * 3/2 = 33/16
3) 11/9 : 2/9 = 11/9 * 9/2 = 11/2
4) 33/16 : 2 = 33/16 * 1/2 = 33/32
5) 11/2 - 33/32 = 176/32 - 33/32 = 143/32 = 4 15/32
---------------------------------------------------------------------
(9/10 - 1/4 + 1/5) : 3/5 = 17/12
1) 9/10 - 1/4 = 18/20 - 5/20 = 13/20
2) 13/20 + 1/5 = 13/20 + 4/20 = 17/20
3) 17/20 : 3/5 = 17/20 * 5/3 = 17/4 * 1/3 = 17/12
17/12 и 3/2 приведем к общему знаменателю
3/2 = 18/12 и эта дробь больше, значит отнимать надо от нее
18/12 - 17/12 = 1/12
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Verified answer
(11 * 1/9) : 2/9 - (11/8 : 2/3) : 2 = 4 15/321) 11 * 1/9 = 11/9
2) 11/8 : 2/3 = 11/8 * 3/2 = 33/16
3) 11/9 : 2/9 = 11/9 * 9/2 = 11/2
4) 33/16 : 2 = 33/16 * 1/2 = 33/32
5) 11/2 - 33/32 = 176/32 - 33/32 = 143/32 = 4 15/32
---------------------------------------------------------------------
(9/10 - 1/4 + 1/5) : 3/5 = 17/12
1) 9/10 - 1/4 = 18/20 - 5/20 = 13/20
2) 13/20 + 1/5 = 13/20 + 4/20 = 17/20
3) 17/20 : 3/5 = 17/20 * 5/3 = 17/4 * 1/3 = 17/12
17/12 и 3/2 приведем к общему знаменателю
3/2 = 18/12 и эта дробь больше, значит отнимать надо от нее
18/12 - 17/12 = 1/12