Subtract 27/98 from 84/42, Solve 2 0/42

Subtract 27/98 from 84/42

1^st number: 2 0/42, 2^nd number: 27/98

84/42 - 27/98 is 169/98.

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,
84/42 = 84 × 7/42 × 7 = 588/294
Likewise, for the 2nd fraction, since 98 × 3 = 294,
27/98 = 27 × 3/98 × 3 = 81/294
Subtract the two like fractions:
588/294 - 81/294 = 588 - 81/294 = 507/294
After reducing the fraction, the answer is 169/98
In mixed form: 171/98

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