Subtract 35/84 from 90/6, Solve 15 0/6

Subtract 35/84 from 90/6

1^st number: 15 0/6, 2^nd number: 35/84

90/6 - 35/84 is 175/12.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 84 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 6 × 14 = 84,
90/6 = 90 × 14/6 × 14 = 1260/84
Likewise, for the 2nd fraction, since 84 × 1 = 84,
35/84 = 35 × 1/84 × 1 = 35/84
Subtract the two like fractions:
1260/84 - 35/84 = 1260 - 35/84 = 1225/84
After reducing the fraction, the answer is 175/12
In mixed form: 147/12

MathStep (Works offline)

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