Subtract 18/27 from 18/8
1st number: 2 2/8, 2nd number: 18/27
18/8 - 18/27 is 19/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 27 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 8 × 27 = 216,
18/8 = 18 × 27/8 × 27 = 486/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
18/27 = 18 × 8/27 × 8 = 144/216 - Subtract the two like fractions:
486/216 - 144/216 = 486 - 144/216 = 342/216 - After reducing the fraction, the answer is 19/12
- In mixed form: 17/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/8-18/27 18/8-36/27 18/16-18/27 18/8-18/54 54/8-18/27 18/8-54/27 18/24-18/27 18/8-18/81 90/8-18/27 18/8-90/27 18/40-18/27 18/56-18/27