Subtract 4/27 from 30/75, Solve 30/75

Subtract 4/27 from 30/75

30/75 - 4/27 is 34/135.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 27 is 675

Next, find the equivalent fraction of both fractional numbers with denominator 675
For the 1st fraction, since 75 × 9 = 675,
30/75 = 30 × 9/75 × 9 = 270/675
Likewise, for the 2nd fraction, since 27 × 25 = 675,
4/27 = 4 × 25/27 × 25 = 100/675
Subtract the two like fractions:
270/675 - 100/675 = 270 - 100/675 = 170/675
After reducing the fraction, the answer is 34/135

MathStep (Works offline)

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