Subtract 4/25 from 18/72
18/72 - 4/25 is 9/100.
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,
18/72 = 18 × 25/72 × 25 = 450/1800 - Likewise, for the 2nd fraction, since 25 × 72 = 1800,
4/25 = 4 × 72/25 × 72 = 288/1800 - Subtract the two like fractions:
450/1800 - 288/1800 = 450 - 288/1800 = 162/1800 - After reducing the fraction, the answer is 9/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/72-4/25 18/72-8/25 18/72-4/50 54/72-4/25 18/72-12/25 18/72-4/75 90/72-4/25 18/72-20/25 18/72-28/25