Subtract 80/98 from 90/42, Solve 2 6/42

Subtract 80/98 from 90/42

1^st number: 2 6/42, 2^nd number: 80/98

90/42 - 80/98 is 65/49.

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,
90/42 = 90 × 7/42 × 7 = 630/294
Likewise, for the 2nd fraction, since 98 × 3 = 294,
80/98 = 80 × 3/98 × 3 = 240/294
Subtract the two like fractions:
630/294 - 240/294 = 630 - 240/294 = 390/294
After reducing the fraction, the answer is 65/49
In mixed form: 116/49

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