Subtract 30/10 from 63/40
1st number: 1 23/40, 2nd number: 3 0/10
63/40 - 30/10 is -57/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 10 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 10 × 4 = 40,
30/10 = 30 × 4/10 × 4 = 120/40 - Subtract the two like fractions:
63/40 - 120/40 = 63 - 120/40 = -57/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/40-60/10 63/80-30/10 63/40-30/20 63/40-90/10 63/40-30/50 63/40-30/70