Subtract 27/10 from 24/63, Solve 24/63

Subtract 27/10 from 24/63

1^st number: 24/63, 2^nd number: 2 7/10

24/63 - 27/10 is -487/210.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 10 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 63 × 10 = 630,
24/63 = 24 × 10/63 × 10 = 240/630
Likewise, for the 2nd fraction, since 10 × 63 = 630,
27/10 = 27 × 63/10 × 63 = 1701/630
Subtract the two like fractions:
240/630 - 1701/630 = 240 - 1701/630 = -1461/630
After reducing the fraction, the answer is -487/210

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