Subtract 4/64 from 1/27, Solve 1/27

Subtract 4/64 from 1/27

1/27 - 4/64 is -11/432.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 64 is 1728

Next, find the equivalent fraction of both fractional numbers with denominator 1728
For the 1st fraction, since 27 × 64 = 1728,
1/27 = 1 × 64/27 × 64 = 64/1728
Likewise, for the 2nd fraction, since 64 × 27 = 1728,
4/64 = 4 × 27/64 × 27 = 108/1728
Subtract the two like fractions:
64/1728 - 108/1728 = 64 - 108/1728 = -44/1728
After reducing the fraction, the answer is -11/432

MathStep (Works offline)

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