Subtract 5/80 from 15/10
1st number: 1 5/10, 2nd number: 5/80
15/10 - 5/80 is 23/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 10 × 8 = 80,
15/10 = 15 × 8/10 × 8 = 120/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
5/80 = 5 × 1/80 × 1 = 5/80 - Subtract the two like fractions:
120/80 - 5/80 = 120 - 5/80 = 115/80 - After reducing the fraction, the answer is 23/16
- In mixed form: 17/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/10-5/80 15/10-10/80 15/20-5/80 45/10-5/80 15/10-15/80 15/30-5/80 75/10-5/80 15/10-25/80 15/50-5/80 15/10-35/80 15/70-5/80