Subtract 27/98 from 90/35, Solve 2 20/35

Subtract 27/98 from 90/35

1^st number: 2 20/35, 2^nd number: 27/98

90/35 - 27/98 is 225/98.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 98 is 490

Next, find the equivalent fraction of both fractional numbers with denominator 490
For the 1st fraction, since 35 × 14 = 490,
90/35 = 90 × 14/35 × 14 = 1260/490
Likewise, for the 2nd fraction, since 98 × 5 = 490,
27/98 = 27 × 5/98 × 5 = 135/490
Subtract the two like fractions:
1260/490 - 135/490 = 1260 - 135/490 = 1125/490
After reducing the fraction, the answer is 225/98
In mixed form: 229/98

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad