Subtract 15/10 from 25/8
1st number: 3 1/8, 2nd number: 1 5/10
25/8 - 15/10 is 13/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
25/8 = 25 × 5/8 × 5 = 125/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
15/10 = 15 × 4/10 × 4 = 60/40 - Subtract the two like fractions:
125/40 - 60/40 = 125 - 60/40 = 65/40 - After reducing the fraction, the answer is 13/8
- In mixed form: 15/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/8-15/10 25/8-30/10 25/16-15/10 25/8-15/20 75/8-15/10 25/8-45/10 25/24-15/10 25/8-15/30 25/8-75/10 25/40-15/10 25/8-15/50 25/56-15/10 25/8-15/70