Subtract 84/49 from 1/42, Solve 1/42

Subtract 84/49 from 1/42

1^st number: 1/42, 2^nd number: 1 35/49

1/42 - 84/49 is -71/42.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 49 is 294

Next, find the equivalent fraction of both fractional numbers with denominator 294
For the 1st fraction, since 42 × 7 = 294,
1/42 = 1 × 7/42 × 7 = 7/294
Likewise, for the 2nd fraction, since 49 × 6 = 294,
84/49 = 84 × 6/49 × 6 = 504/294
Subtract the two like fractions:
7/294 - 504/294 = 7 - 504/294 = -497/294
After reducing the fraction, the answer is -71/42

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