Subtract 6/45 from 7/27
7/27 - 6/45 is 17/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 45 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 27 × 5 = 135,
7/27 = 7 × 5/27 × 5 = 35/135 - Likewise, for the 2nd fraction, since 45 × 3 = 135,
6/45 = 6 × 3/45 × 3 = 18/135 - Subtract the two like fractions:
35/135 - 18/135 = 35 - 18/135 = 17/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/27-6/45 7/27-12/45 7/54-6/45 7/27-6/90 21/27-6/45 7/27-18/45 7/81-6/45 35/27-6/45 7/27-30/45 49/27-6/45 7/27-42/45