Реши уравнение a) 4/15 - (y+3/25) = 1/25 б) 3 целых1/16: (х-5/16) = 7/8

A) 4/15 - (y+3/25) = 1/25

- (y+3/25) = 1/25-4/15

- (y+3/25) = 3/75-20/75

y+3/25=17/75

y = 17/75-3/25

y=17/75-9/75

y=8/75

проверка:

4/15 - (8/75+3/25) = 1/25

4/15 - (8/75+9/75) = 1/25

4/15-17/75=1/25

20/75-17/75=1/25

3/75=1/25

1/25=1/25

б) 3 1/16: (х-5/16) = 7/8

7/8 (x-5/16) = 3 1/16

7/8x-35/128=3 1/16

7/8x=49/16+35/128

7/8x=392/128+35/128

7/8x=427/128

x=427/128*8/7

x=61/16

x=3 13/16

проверка:

49/16: (61/16-5/16) = 7/8

49/16:56/16=7/8

49/16*16/56=7/8

49/56=7/8

7/8=7/8