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Школьничешка
@Школьничешка
August 2022
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Задание 57 и 58 с решением.
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57. ответ 33 3/4
1)12 5/12+1 2/3=12 5/12+1 8/12=13 13/12=
=14 1/12
2)3 5/6+2 3/4=3 20/24+2 18/24=5 38/24=
=6 14/24=6 7/12
3)14 1/12-6 7/12=13 13/12-6 7/12=7 6/12=
=7 1/2
4)2 1/2*2/5=5/2*2/5=1
5)1-7/9=9/9-7/9=2/9
6)7 1/2:2/9=15/2*9/2=135/4=33 3/4
58,
1)15/28-11/36=30/36-11/36=19/36
2)19/36*21/29=133/348
3)6 6/7:16/21=48/7*21/16=9
4)133/348+9=9 133/348
5)16 1/2÷9 133/348=33/2÷3265/348=
=33/2*348/3265=5742/3265=2477/3265S
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Answers & Comments
1)12 5/12+1 2/3=12 5/12+1 8/12=13 13/12=
=14 1/12
2)3 5/6+2 3/4=3 20/24+2 18/24=5 38/24=
=6 14/24=6 7/12
3)14 1/12-6 7/12=13 13/12-6 7/12=7 6/12=
=7 1/2
4)2 1/2*2/5=5/2*2/5=1
5)1-7/9=9/9-7/9=2/9
6)7 1/2:2/9=15/2*9/2=135/4=33 3/4
58,
1)15/28-11/36=30/36-11/36=19/36
2)19/36*21/29=133/348
3)6 6/7:16/21=48/7*21/16=9
4)133/348+9=9 133/348
5)16 1/2÷9 133/348=33/2÷3265/348=
=33/2*348/3265=5742/3265=2477/3265S