Subtract 6/63 from 90/25, Solve 3 15/25

Subtract 6/63 from 90/25

1^st number: 3 15/25, 2^nd number: 6/63

90/25 - 6/63 is 368/105.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 63 is 1575

Next, find the equivalent fraction of both fractional numbers with denominator 1575
For the 1st fraction, since 25 × 63 = 1575,
90/25 = 90 × 63/25 × 63 = 5670/1575
Likewise, for the 2nd fraction, since 63 × 25 = 1575,
6/63 = 6 × 25/63 × 25 = 150/1575
Subtract the two like fractions:
5670/1575 - 150/1575 = 5670 - 150/1575 = 5520/1575
After reducing the fraction, the answer is 368/105
In mixed form: 353/105

MathStep (Works offline)

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