(8 7/12 - 2 17/36) * 2 7/10 - 4 1/3 : 65/100 - вопрос №4176780871221736271041365100 от Itismylife 21.10.2020 06:54

Question

Математика: (8 7/12 - 2 17/36) * 2 7/10 - 4 1/3 : 65/100

Itismylife · Answer

(8 7/12 - 2 17/36) * 2 7/10 - 4 1/3 : 65/100 = 9 5/6

1) 8 7/12 - 2 17/36 = 8 21/36 - 2 17/36 = 6 4/36 = 6 1/9
2) 6 1/9 * 2 7/10 = 55/9 * 27/10 = (11*3)/(1*2) = 33/2 = 16 1/2
3) 4 1/3 : 65/100 = 13/3 * 100/65 = (1*100)/(3*5) = 100/15 = 6 10/15 = 6 2/3
4) 16 1/2 - 6 2/3 = 16 3/6 - 6 4/6 = 15 9/6 - 6 4/6 = 9 5/6