Subtract 1/64 from 63/27, Solve 2 9/27

Subtract 1/64 from 63/27

1^st number: 2 9/27, 2^nd number: 1/64

63/27 - 1/64 is 445/192.

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,
63/27 = 63 × 64/27 × 64 = 4032/1728
Likewise, for the 2nd fraction, since 64 × 27 = 1728,
1/64 = 1 × 27/64 × 27 = 27/1728
Subtract the two like fractions:
4032/1728 - 27/1728 = 4032 - 27/1728 = 4005/1728
After reducing the fraction, the answer is 445/192
In mixed form: 261/192

MathStep (Works offline)

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