Subtract 10/27 from 18/45
18/45 - 10/27 is 4/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 45 × 3 = 135,
18/45 = 18 × 3/45 × 3 = 54/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
10/27 = 10 × 5/27 × 5 = 50/135 - Subtract the two like fractions:
54/135 - 50/135 = 54 - 50/135 = 4/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45-10/27 18/45-20/27 18/90-10/27 18/45-10/54 54/45-10/27 18/45-30/27 18/45-10/81 90/45-10/27 18/45-50/27 18/45-70/27