Subtract 27/8 from 3/18
1st number: 3/18, 2nd number: 3 3/8
3/18 - 27/8 is -77/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
3/18 = 3 × 4/18 × 4 = 12/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
27/8 = 27 × 9/8 × 9 = 243/72 - Subtract the two like fractions:
12/72 - 243/72 = 12 - 243/72 = -231/72 - After reducing the fraction, the answer is -77/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/18-27/8 3/18-54/8 3/36-27/8 3/18-27/16 9/18-27/8 3/18-81/8 3/54-27/8 3/18-27/24 15/18-27/8 3/90-27/8 3/18-27/40 21/18-27/8 3/18-27/56