Subtract 63/40 from 3/10
1st number: 3/10, 2nd number: 1 23/40
3/10 - 63/40 is -51/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
3/10 = 3 × 4/10 × 4 = 12/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
63/40 = 63 × 1/40 × 1 = 63/40 - Subtract the two like fractions:
12/40 - 63/40 = 12 - 63/40 = -51/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/10-63/40 3/20-63/40 3/10-63/80 9/10-63/40 3/30-63/40 15/10-63/40 3/50-63/40 21/10-63/40 3/70-63/40