Subtract 18/27 from 3/4
3/4 - 18/27 is 1/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 4 × 27 = 108,
3/4 = 3 × 27/4 × 27 = 81/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
18/27 = 18 × 4/27 × 4 = 72/108 - Subtract the two like fractions:
81/108 - 72/108 = 81 - 72/108 = 9/108 - After reducing the fraction, the answer is 1/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/4-18/27 3/4-36/27 3/8-18/27 3/4-18/54 9/4-18/27 3/4-54/27 3/12-18/27 3/4-18/81 15/4-18/27 3/4-90/27 3/20-18/27 21/4-18/27 3/28-18/27