Answer:
1) 10
- 3 3/8
________
=6 5/8
2) 1/5= 2/10
2/10
+ 20 3/10
+ 5 6/10
_________
25 11/10
= 26 1/10
3) 11/12
+ 10
- 10/12
= 10 1/12
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