Subtract 40/98 from 84/42, Solve 2 0/42

Subtract 40/98 from 84/42

1^st number: 2 0/42, 2^nd number: 40/98

84/42 - 40/98 is 78/49.

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,
40/98 = 40 × 3/98 × 3 = 120/294
Subtract the two like fractions:
588/294 - 120/294 = 588 - 120/294 = 468/294
After reducing the fraction, the answer is 78/49
In mixed form: 129/49

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