(7-дробь 8 - 3 дробь 16) + (2-целых 1-дробь 4 + 1 целая 3-дробь 32) =

(7/8 - 3/16) + (2 1/4 + 1 3/32) = 4 1/32
1) 7/8 - 3/16 = 14/16 - 3/16 = 11/16
2) 2 1/4 + 1 3/32 = 2 8/32 + 1 3/32 = 3 11/32
3) 11/16 + 3 11/32 = 22/32 + 3 11/32 = 3 33/32 = 4 1/32

1)7/8-3/16=14/16-3/16=11/16
2)2 1/4+1 3/32=2 8/32+1 3/32=3 11/32
3)11/16+3 11/32=22/32+3 11/32=3 33/32=4 1/32