Subtract 63/40 from 28/15
1st number: 1 13/15, 2nd number: 1 23/40
28/15 - 63/40 is 7/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
28/15 = 28 × 8/15 × 8 = 224/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
63/40 = 63 × 3/40 × 3 = 189/120 - Subtract the two like fractions:
224/120 - 189/120 = 224 - 189/120 = 35/120 - After reducing the fraction, the answer is 7/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15-63/40 28/30-63/40 28/15-63/80 84/15-63/40 28/45-63/40 28/75-63/40