Subtract 30/63 from 8/25, Solve 8/25

Subtract 30/63 from 8/25

8/25 - 30/63 is -82/525.

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,
8/25 = 8 × 63/25 × 63 = 504/1575
Likewise, for the 2nd fraction, since 63 × 25 = 1575,
30/63 = 30 × 25/63 × 25 = 750/1575
Subtract the two like fractions:
504/1575 - 750/1575 = 504 - 750/1575 = -246/1575
After reducing the fraction, the answer is -82/525

MathStep (Works offline)

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