Subtract 4/20 from 27/8
1st number: 3 3/8, 2nd number: 4/20
27/8 - 4/20 is 127/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
27/8 = 27 × 5/8 × 5 = 135/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
4/20 = 4 × 2/20 × 2 = 8/40 - Subtract the two like fractions:
135/40 - 8/40 = 135 - 8/40 = 127/40 - In mixed form: 37/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/8-4/20 27/8-8/20 27/16-4/20 27/8-4/40 81/8-4/20 27/8-12/20 27/24-4/20 27/8-4/60 27/40-4/20 27/8-28/20 27/56-4/20