Subtract 3/84 from 25/72
25/72 - 3/84 is 157/504.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 84 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
25/72 = 25 × 7/72 × 7 = 175/504 - Likewise, for the 2nd fraction, since 84 × 6 = 504,
3/84 = 3 × 6/84 × 6 = 18/504 - Subtract the two like fractions:
175/504 - 18/504 = 175 - 18/504 = 157/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/72-3/84 25/72-6/84 75/72-3/84 25/72-9/84 25/72-15/84 25/72-21/84