Subtract 2/7 from 25/72
25/72 - 2/7 is 31/504.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 7 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 7 × 72 = 504,
2/7 = 2 × 72/7 × 72 = 144/504 - Subtract the two like fractions:
175/504 - 144/504 = 175 - 144/504 = 31/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/72-2/7 25/72-4/7 25/72-2/14 75/72-2/7 25/72-6/7 25/72-2/21 25/72-10/7 25/72-2/35 25/72-14/7 25/72-2/49