Subtract 63/15 from 28/10
1st number: 2 8/10, 2nd number: 4 3/15
28/10 - 63/15 is -7/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
28/10 = 28 × 3/10 × 3 = 84/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
63/15 = 63 × 2/15 × 2 = 126/30 - Subtract the two like fractions:
84/30 - 126/30 = 84 - 126/30 = -42/30 - After reducing the fraction, the answer is -7/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/10-63/15 28/20-63/15 28/10-63/30 84/10-63/15 28/30-63/15 28/10-63/45 28/50-63/15 28/10-63/75 28/70-63/15