Subtract 45/30 from 48/63, Solve 48/63

Subtract 45/30 from 48/63

1^st number: 48/63, 2^nd number: 1 15/30

48/63 - 45/30 is -31/42.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 30 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 63 × 10 = 630,
48/63 = 48 × 10/63 × 10 = 480/630
Likewise, for the 2nd fraction, since 30 × 21 = 630,
45/30 = 45 × 21/30 × 21 = 945/630
Subtract the two like fractions:
480/630 - 945/630 = 480 - 945/630 = -465/630
After reducing the fraction, the answer is -31/42

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