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ЭминЮнисов
@ЭминЮнисов
June 2022
2
10
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Найди сумму и разность чисел: 13/30 и 22/45; 3/14 и 4/21; 17/45 и 5/18.
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Answers & Comments
Irka200664
13/30 + 22/45 = 39/90 + 44/90 = 83/90; 13/30 - 22/45 = 39/90 - 44/90 = - 5/90 = -1/18.3/14 + 4/21 = 9/42 + 8/42 = 17/42; 3/14 - 4/21 = 9/42 - 8/42 = 1/42.17/45 + 5/18 = 34/90 + 25/90 = 59/90; 17/45 - 5/18 = 34/90 - 25/90 = 9/90 = 1/10.
1 votes
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zoloto1205
13/30+22/45 =39/90+44/90=83/90
13/30-22/45=39/90-44/90= - 5/90 = - 1/18
3/14+4/21 = 9/42+8/42 =15/42
3/14-4/21 = 9/42 - 8/42 = 1/42
17/45+5/18 = 34/90/+25/90 = 59/90
17/45-5/18 = 34/90 - 25/90 = 9/90 = 1/10
1 votes
Thanks 0
zoloto1205
в третьем примере получается 9/42+8/42=17/42
ЭминЮнисов
спасибо
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Answers & Comments
13/30-22/45=39/90-44/90= - 5/90 = - 1/18
3/14+4/21 = 9/42+8/42 =15/42
3/14-4/21 = 9/42 - 8/42 = 1/42
17/45+5/18 = 34/90/+25/90 = 59/90
17/45-5/18 = 34/90 - 25/90 = 9/90 = 1/10