Subtract 63/42 from 25/10, Solve 2 5/10

Subtract 63/42 from 25/10

1^st number: 2 5/10, 2^nd number: 1 21/42

25/10 - 63/42 is 1/1.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 10 × 21 = 210,
25/10 = 25 × 21/10 × 21 = 525/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
63/42 = 63 × 5/42 × 5 = 315/210
Subtract the two like fractions:
525/210 - 315/210 = 525 - 315/210 = 210/210
After reducing the fraction, the answer is 1/1

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