1 - 8/15=7/15
3 -2/11=2 9/11
4 -3 4/9 =5/9
7 3/8 - 5 =2 3/8
45 - 44 3/8=5/8
1-8/15=15/15-8/15=7/15;
3-2/11=2 11/11-2/11=2 9/11;
4-3 4/9=3 9/9-3 4/9=5/9;
7 3/8-5=2 3/8;
45-44 3/8=44 8/8-44 3/8=5/8
1 - 8/15=7/15
3 -2/11=2 9/11
4 -3 4/9 =5/9
7 3/8 - 5 =2 3/8
45 - 44 3/8=5/8
1-8/15=15/15-8/15=7/15;
3-2/11=2 11/11-2/11=2 9/11;
4-3 4/9=3 9/9-3 4/9=5/9;
7 3/8-5=2 3/8;
45-44 3/8=44 8/8-44 3/8=5/8