Subtract 60/50 from 28/72
1st number: 28/72, 2nd number: 1 10/50
28/72 - 60/50 is -73/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 50 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 72 × 25 = 1800,
28/72 = 28 × 25/72 × 25 = 700/1800 - Likewise, for the 2nd fraction, since 50 × 36 = 1800,
60/50 = 60 × 36/50 × 36 = 2160/1800 - Subtract the two like fractions:
700/1800 - 2160/1800 = 700 - 2160/1800 = -1460/1800 - After reducing the fraction, the answer is -73/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/72-60/50 84/72-60/50