Subtract 63/8 from 25/15, Solve 1 10/15

Subtract 63/8 from 25/15

1^st number: 1 10/15, 2^nd number: 7 7/8

25/15 - 63/8 is -149/24.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 8 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 15 × 8 = 120,
25/15 = 25 × 8/15 × 8 = 200/120
Likewise, for the 2nd fraction, since 8 × 15 = 120,
63/8 = 63 × 15/8 × 15 = 945/120
Subtract the two like fractions:
200/120 - 945/120 = 200 - 945/120 = -745/120
After reducing the fraction, the answer is -149/24

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