Subtract 28/18 from 25/63, Solve 25/63

Subtract 28/18 from 25/63

1^st number: 25/63, 2^nd number: 1 10/18

25/63 - 28/18 is -73/63.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 63 × 2 = 126,
25/63 = 25 × 2/63 × 2 = 50/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
28/18 = 28 × 7/18 × 7 = 196/126
Subtract the two like fractions:
50/126 - 196/126 = 50 - 196/126 = -146/126
After reducing the fraction, the answer is -73/63

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