Subtract 32/18 from 27/8
1st number: 3 3/8, 2nd number: 1 14/18
27/8 - 32/18 is 115/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
27/8 = 27 × 9/8 × 9 = 243/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
32/18 = 32 × 4/18 × 4 = 128/72 - Subtract the two like fractions:
243/72 - 128/72 = 243 - 128/72 = 115/72 - In mixed form: 143/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/8-32/18 27/8-64/18 27/16-32/18 27/8-32/36 81/8-32/18 27/8-96/18 27/24-32/18 27/8-32/54 27/40-32/18 27/8-32/90 27/56-32/18