Subtract 80/60 from 12/15
1st number: 12/15, 2nd number: 1 20/60
12/15 - 80/60 is -8/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
12/15 = 12 × 4/15 × 4 = 48/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
80/60 = 80 × 1/60 × 1 = 80/60 - Subtract the two like fractions:
48/60 - 80/60 = 48 - 80/60 = -32/60 - After reducing the fraction, the answer is -8/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/15-80/60 12/30-80/60 36/15-80/60 12/45-80/60 60/15-80/60 12/75-80/60 84/15-80/60