Subtract 27/40 from 20/5
1st number: 4 0/5, 2nd number: 27/40
20/5 - 27/40 is 133/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
20/5 = 20 × 8/5 × 8 = 160/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
27/40 = 27 × 1/40 × 1 = 27/40 - Subtract the two like fractions:
160/40 - 27/40 = 160 - 27/40 = 133/40 - In mixed form: 313/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/5-27/40 20/5-54/40 20/10-27/40 20/5-27/80 60/5-27/40 20/5-81/40 20/15-27/40 20/25-27/40 20/35-27/40