Subtract 27/8 from 72/4
1st number: 18 0/4, 2nd number: 3 3/8
72/4 - 27/8 is 117/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 8 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 4 × 2 = 8,
72/4 = 72 × 2/4 × 2 = 144/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
27/8 = 27 × 1/8 × 1 = 27/8 - Subtract the two like fractions:
144/8 - 27/8 = 144 - 27/8 = 117/8 - In mixed form: 145/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/4-54/8 72/8-27/8 72/4-27/16 72/4-81/8 72/12-27/8 72/4-27/24 72/20-27/8 72/4-27/40 72/28-27/8 72/4-27/56