Subtract 35/20 from 15/80
1st number: 15/80, 2nd number: 1 15/20
15/80 - 35/20 is -25/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
15/80 = 15 × 1/80 × 1 = 15/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
35/20 = 35 × 4/20 × 4 = 140/80 - Subtract the two like fractions:
15/80 - 140/80 = 15 - 140/80 = -125/80 - After reducing the fraction, the answer is -25/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/80-35/20 15/80-70/20 15/80-35/40 45/80-35/20 15/80-35/60 75/80-35/20