Subtract 28/25 from 9/72
1st number: 9/72, 2nd number: 1 3/25
9/72 - 28/25 is -199/200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 25 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 25 × 72 = 1800,
28/25 = 28 × 72/25 × 72 = 2016/1800 - Subtract the two like fractions:
225/1800 - 2016/1800 = 225 - 2016/1800 = -1791/1800 - After reducing the fraction, the answer is -199/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/72-28/25 9/72-56/25 9/72-28/50 27/72-28/25 9/72-84/25 9/72-28/75 45/72-28/25 63/72-28/25