Subtract 25/50 from 7/72
7/72 - 25/50 is -29/72.
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,
7/72 = 7 × 25/72 × 25 = 175/1800 - Likewise, for the 2nd fraction, since 50 × 36 = 1800,
25/50 = 25 × 36/50 × 36 = 900/1800 - Subtract the two like fractions:
175/1800 - 900/1800 = 175 - 900/1800 = -725/1800 - After reducing the fraction, the answer is -29/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/72-25/50 21/72-25/50 7/72-75/50 35/72-25/50 49/72-25/50