2/5 minus 1/15 is 1/3
5/6 minus 3/4 is 1/12
13/20 minus 3/5 is 1/20
3/5-1/3... First make both fractions equal... 3/5 = 9/15 and 1/3 = 5/15. 9/15 - 5/15 = 4/15
4/5 - 1/5 = 3/5
3/4 minus 1/5 is 11/20
3/5
2/3 − 1/5 = 7/15
4/5 - 1/3 = 7/15
5 over 12
-1/2
2/5 = 4/10 minus 1/10 is 3/10
5/12 − 1/3 = 3/36 which simplifies to 1/12
8/9 minus 5/9 is 1/3
1 − 5/2 = -11/2
3/5
3/5 − 4/15 = 1/3