Subtract 9/50 from 9/72
9/72 - 9/50 is -11/200.
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,
9/72 = 9 × 25/72 × 25 = 225/1800 - Likewise, for the 2nd fraction, since 50 × 36 = 1800,
9/50 = 9 × 36/50 × 36 = 324/1800 - Subtract the two like fractions:
225/1800 - 324/1800 = 225 - 324/1800 = -99/1800 - After reducing the fraction, the answer is -11/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/72-9/50 9/72-18/50 27/72-9/50 9/72-27/50 45/72-9/50 9/72-45/50 63/72-9/50 9/72-63/50