nomor 1. 2 3/4 - 1 2/8= nomor 2. 4 3/8 - 5/12

1.23/4-12/8=46/8-12/8=34/8

2..........

1. 2 3/4 - 12/8
= 11/4 - 12/8
= 11/4 - 6/4
= 5/4
= 1 1/4

2. 4 3/8 - 5/12
= 35/8 - 5/12
= 105/24 - 10/24
= 95/24
= 3 23/24