Решите уровнение 1) х+5/14=5/6 3) 17 целая 3/8-y = 9 целая 5/12 + 2целая 1/6. Created by 777KAMILLA777. matematika-ru

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Решите уровнение 1) х+5/14=5/6 3) 17 целая 3/8-y = 9 целая 5/12 + 2целая 1/6

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1)X=5/6 -5/14
X=70/84 -30/84
X=40/84
X=10/21
3)139/8 - у = 113/12 + 13/6

139/8 -у = 113/12+ 26/12

139/8 -у = 139/12

у = 139/8 - 139/12

у = (139*12-139*8) / 8*12

у = 139(12-8) / 8*12

у = 139*4 / 8*12

у = 139/24

у = 5 целых 19/24

2 votes Thanks 3

lenapanova

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1) х + 5/14 = 5/6
х = 5/6 - 5/14
х = 20/42 = 10/21

3) 17 3/8 - у = 9 5/12 + 2 1/6
17 3/8 - у = 11 7/12
у = 17 3/8 - 11 7/12
у = 5 19/24

2 votes Thanks 3

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