Решите 11 х-5/8=2 7/12 и 27/28 х+5/4=3 17/28

Question

Математика

Ларита

15 марта, 06:12

Решите 11 х-5/8=2 7/12 и 27/28 х+5/4=3 17/28

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Ответы (2)

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Куляч · Answer 1

11 х - 5/8 = 2 7/12,

11 х = 2 7/12 + 5/8,

11 х = 31/12 + 5/8,

11 х = 62/24 + 15/24,

11 х = 77/24,

х = 77/24 : 11,

х = 77/24 * 1/11,

х = 7/24,

27/28 х + 5/4 = 3 17/28,

27/28 х = 3 17/28 - 5/4,

27/28 х = 2 45/28 - 35/28,

27/28 х = 2 10/28,

27/28 х = 66/28,

х = 66/28 : 27/28,

х = 66/28 * 28/27,

х = 22/9,

х = 2 4/9

Вимала · Answer 2

11x-5/8=2 7/12

11x-0,625=31/12

11x=31/12+0,625

11x=31/12+5/8

11x=77/24

x=7/24

27/28x+5/4=3 17/28

27/28x+1,25=101/28

27/28x+5/4=101/28

27x+35=101

27x=101-35

27x=66

x=22/9