Subtract 3/20 from 63/40
1st number: 1 23/40, 2nd number: 3/20
63/40 - 3/20 is 57/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
63/40 = 63 × 1/40 × 1 = 63/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
3/20 = 3 × 2/20 × 2 = 6/40 - Subtract the two like fractions:
63/40 - 6/40 = 63 - 6/40 = 57/40 - In mixed form: 117/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/40-6/20 63/80-3/20 63/40-3/40 63/40-9/20 63/40-3/60 63/40-15/20 63/40-21/20