Subtract 80/28 from 60/45
1st number: 1 15/45, 2nd number: 2 24/28
60/45 - 80/28 is -32/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
60/45 = 60 × 28/45 × 28 = 1680/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
80/28 = 80 × 45/28 × 45 = 3600/1260 - Subtract the two like fractions:
1680/1260 - 3600/1260 = 1680 - 3600/1260 = -1920/1260 - After reducing the fraction, the answer is -32/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/90-80/28 60/45-80/56 60/45-80/84