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Question

3/8*5/6=? -14/15*(-3/7)=? 18/55*(-11/18)=? -21/32*(-12/35)=? 17/40*(-8/51)=? -15/22*4/27=?

Answer 1

1. 5/16
2. 2/5
3. 1/5
4. 9/40
5. 1/15
6. 10/99