1) (2 9 + 2) X = 1 2 + 1/220 X = 2 + 1/220X = 2.5X = 2.5 / 20X = 0.125
2) X / (35/36) = 1 1 + 1/20X / (35/36) = 1 + 1/20X = (35/36) (1 + 1/20)X = (35/36) (20/20 + 1/20)X = (35/36) (21/20)X = 735/720X = 1 + 15/720X = 1 + 1/48X = 1 целая 1/48
3) (1 75 + 13) y = 2/388y = 2/3y = (2/3) / 88y = 2 / (3 * 88)y = 2 / 264y = 1 / 132
4) 24/35 / y = 1 5/35 + 49/3524 / (35 y) = 5/35 + 49/3524 / (35 * y) = 54 / 3524 = 54yy = 24 / 54y = 4 / 9
Ответы:1) X = 0.1252) X = 1 целая 1/483) y = 1 / 1324) y = 4 / 9
1) (2 9 + 2) X = 1 2 + 1/2
20 X = 2 + 1/2
20X = 2.5
X = 2.5 / 20
X = 0.125
2) X / (35/36) = 1 1 + 1/20
X / (35/36) = 1 + 1/20
X = (35/36) (1 + 1/20)
X = (35/36) (20/20 + 1/20)
X = (35/36) (21/20)
X = 735/720
X = 1 + 15/720
X = 1 + 1/48
X = 1 целая 1/48
3) (1 75 + 13) y = 2/3
88y = 2/3
y = (2/3) / 88
y = 2 / (3 * 88)
y = 2 / 264
y = 1 / 132
4) 24/35 / y = 1 5/35 + 49/35
24 / (35 y) = 5/35 + 49/35
24 / (35 * y) = 54 / 35
24 = 54y
y = 24 / 54
y = 4 / 9
Ответы:
1) X = 0.125
2) X = 1 целая 1/48
3) y = 1 / 132
4) y = 4 / 9