Subtract 10/98 from 20/42, Solve 20/42

Subtract 10/98 from 20/42

20/42 - 10/98 is 55/147.

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,
20/42 = 20 × 7/42 × 7 = 140/294
Likewise, for the 2nd fraction, since 98 × 3 = 294,
10/98 = 10 × 3/98 × 3 = 30/294
Subtract the two like fractions:
140/294 - 30/294 = 140 - 30/294 = 110/294
After reducing the fraction, the answer is 55/147

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