Subtract 5/49 from 18/27, Solve 18/27

Subtract 5/49 from 18/27

18/27 - 5/49 is 83/147.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 49 is 1323

Next, find the equivalent fraction of both fractional numbers with denominator 1323
For the 1st fraction, since 27 × 49 = 1323,
18/27 = 18 × 49/27 × 49 = 882/1323
Likewise, for the 2nd fraction, since 49 × 27 = 1323,
5/49 = 5 × 27/49 × 27 = 135/1323
Subtract the two like fractions:
882/1323 - 135/1323 = 882 - 135/1323 = 747/1323
After reducing the fraction, the answer is 83/147

MathStep (Works offline)

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