Subtract 56/98 from 63/42, Solve 1 21/42

Subtract 56/98 from 63/42

1^st number: 1 21/42, 2^nd number: 56/98

63/42 - 56/98 is 13/14.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 98 is 294

Next, find the equivalent fraction of both fractional numbers with denominator 294
For the 1st fraction, since 42 × 7 = 294,
63/42 = 63 × 7/42 × 7 = 441/294
Likewise, for the 2nd fraction, since 98 × 3 = 294,
56/98 = 56 × 3/98 × 3 = 168/294
Subtract the two like fractions:
441/294 - 168/294 = 441 - 168/294 = 273/294
After reducing the fraction, the answer is 13/14

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