Subtract 4/35 from 98/30, Solve 3 8/30

Subtract 4/35 from 98/30

1^st number: 3 8/30, 2^nd number: 4/35

98/30 - 4/35 is 331/105.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 35 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 30 × 7 = 210,
98/30 = 98 × 7/30 × 7 = 686/210
Likewise, for the 2nd fraction, since 35 × 6 = 210,
4/35 = 4 × 6/35 × 6 = 24/210
Subtract the two like fractions:
686/210 - 24/210 = 686 - 24/210 = 662/210
After reducing the fraction, the answer is 331/105
In mixed form: 316/105

MathStep (Works offline)

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