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аня2150
@аня2150
July 2022
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помготи плиз вот надо решить только номера под цифрой 2
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fanta2310
Verified answer
2 1/3 х = 1
х = 1 : 2 1/3
х = 1 : 7/3 = 1 * 3/7
х = 3/7
проверка: 2 1/3 * 3/7 = 7/3 * 3/7 = 1
2/3х : 1 3/5 = 25
2/3х = 25 * 1 3/5
2/3х = 25 * 8/5
2/3х = 5 * 8
2/3х = 40
х = 40 : 2/3
х = 40 * 3/2
х = 60
проверка: 2/3 * 60 = 40 : 1 3/5 = 40 : 8/5 = 25
0 votes
Thanks 1
аня2150
спаисбо
Алисия98
2.1)2 целых 1/3=7/3
если 7/3*3/7=1
1 votes
Thanks 1
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Answers & Comments
Verified answer
2 1/3 х = 1х = 1 : 2 1/3
х = 1 : 7/3 = 1 * 3/7
х = 3/7
проверка: 2 1/3 * 3/7 = 7/3 * 3/7 = 1
2/3х : 1 3/5 = 25
2/3х = 25 * 1 3/5
2/3х = 25 * 8/5
2/3х = 5 * 8
2/3х = 40
х = 40 : 2/3
х = 40 * 3/2
х = 60
проверка: 2/3 * 60 = 40 : 1 3/5 = 40 : 8/5 = 25
если 7/3*3/7=1