Subtract 63/40 from 7/5
1st number: 1 2/5, 2nd number: 1 23/40
7/5 - 63/40 is -7/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
7/5 = 7 × 8/5 × 8 = 56/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
63/40 = 63 × 1/40 × 1 = 63/40 - Subtract the two like fractions:
56/40 - 63/40 = 56 - 63/40 = -7/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/5-63/40 7/10-63/40 7/5-63/80 21/5-63/40 7/15-63/40 35/5-63/40 7/25-63/40 49/5-63/40 7/35-63/40