Subtract 27/49 from 90/35, Solve 2 20/35

Subtract 27/49 from 90/35

1^st number: 2 20/35, 2^nd number: 27/49

90/35 - 27/49 is 99/49.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 49 is 245

Next, find the equivalent fraction of both fractional numbers with denominator 245
For the 1st fraction, since 35 × 7 = 245,
90/35 = 90 × 7/35 × 7 = 630/245
Likewise, for the 2nd fraction, since 49 × 5 = 245,
27/49 = 27 × 5/49 × 5 = 135/245
Subtract the two like fractions:
630/245 - 135/245 = 630 - 135/245 = 495/245
After reducing the fraction, the answer is 99/49
In mixed form: 21/49

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