Subtract 15/7 from 5/10
1st number: 5/10, 2nd number: 2 1/7
5/10 - 15/7 is -23/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
5/10 = 5 × 7/10 × 7 = 35/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
15/7 = 15 × 10/7 × 10 = 150/70 - Subtract the two like fractions:
35/70 - 150/70 = 35 - 150/70 = -115/70 - After reducing the fraction, the answer is -23/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 5/10-30/7 5/20-15/7 5/10-15/14 15/10-15/7 5/10-45/7 5/30-15/7 5/10-15/21 25/10-15/7 5/10-75/7 5/50-15/7 5/10-15/35 35/10-15/7 5/70-15/7 5/10-15/49