Subtract 30/63 from 9/48, Solve 9/48

Subtract 30/63 from 9/48

9/48 - 30/63 is -97/336.

Find the least common denominator or LCM of the two denominators:
LCM of 48 and 63 is 1008

Next, find the equivalent fraction of both fractional numbers with denominator 1008
For the 1st fraction, since 48 × 21 = 1008,
9/48 = 9 × 21/48 × 21 = 189/1008
Likewise, for the 2nd fraction, since 63 × 16 = 1008,
30/63 = 30 × 16/63 × 16 = 480/1008
Subtract the two like fractions:
189/1008 - 480/1008 = 189 - 480/1008 = -291/1008
After reducing the fraction, the answer is -97/336

MathStep (Works offline)

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