Subtract 9/40 from 63/30
1st number: 2 3/30, 2nd number: 9/40
63/30 - 9/40 is 15/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
63/30 = 63 × 4/30 × 4 = 252/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
9/40 = 9 × 3/40 × 3 = 27/120 - Subtract the two like fractions:
252/120 - 27/120 = 252 - 27/120 = 225/120 - After reducing the fraction, the answer is 15/8
- In mixed form: 17/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/30-18/40 63/60-9/40 63/30-9/80 63/30-27/40 63/90-9/40 63/30-45/40 63/30-63/40