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-10 - 15 = -25
-25 - 10 = -35
-10
7/10 minus 9/15 is 1/10
9/10 minus 9/15 is 3/10
35
-15-(-10)= -15+10= -5
-5 - 10 = -15
15 - 25 = -10
-5 minus -15 = 10 5 minus -5 = 10
25 minus 15 is 10.
10
15
2/3 = 10/15 and 1/5 = 3/15. 10/15 - 3/15 = 7/15 There's the answer