Subtract 20/50 from 64/75
64/75 - 20/50 is 34/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 50 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 75 × 2 = 150,
64/75 = 64 × 2/75 × 2 = 128/150 - Likewise, for the 2nd fraction, since 50 × 3 = 150,
20/50 = 20 × 3/50 × 3 = 60/150 - Subtract the two like fractions:
128/150 - 60/150 = 128 - 60/150 = 68/150 - After reducing the fraction, the answer is 34/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/75-40/50 64/75-60/50