Subtract 63/40 from 15/48
1st number: 15/48, 2nd number: 1 23/40
15/48 - 63/40 is -101/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 40 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
15/48 = 15 × 5/48 × 5 = 75/240 - Likewise, for the 2nd fraction, since 40 × 6 = 240,
63/40 = 63 × 6/40 × 6 = 378/240 - Subtract the two like fractions:
75/240 - 378/240 = 75 - 378/240 = -303/240 - After reducing the fraction, the answer is -101/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/48-63/40 15/96-63/40 15/48-63/80 45/48-63/40 75/48-63/40