Subtract 27/40 from 50/20
1st number: 2 10/20, 2nd number: 27/40
50/20 - 27/40 is 73/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
50/20 = 50 × 2/20 × 2 = 100/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
27/40 = 27 × 1/40 × 1 = 27/40 - Subtract the two like fractions:
100/40 - 27/40 = 100 - 27/40 = 73/40 - In mixed form: 133/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/20-54/40 50/40-27/40 50/20-27/80 50/20-81/40 50/60-27/40