Subtract 9/20 from 63/75
63/75 - 9/20 is 39/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 20 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
63/75 = 63 × 4/75 × 4 = 252/300 - Likewise, for the 2nd fraction, since 20 × 15 = 300,
9/20 = 9 × 15/20 × 15 = 135/300 - Subtract the two like fractions:
252/300 - 135/300 = 252 - 135/300 = 117/300 - After reducing the fraction, the answer is 39/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/75-18/20 63/75-9/40 63/75-27/20 63/75-9/60 63/75-45/20 63/75-63/20