Subtract 3/7 from 6/72
6/72 - 3/7 is -29/84.
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,
6/72 = 6 × 7/72 × 7 = 42/504 - Likewise, for the 2nd fraction, since 7 × 72 = 504,
3/7 = 3 × 72/7 × 72 = 216/504 - Subtract the two like fractions:
42/504 - 216/504 = 42 - 216/504 = -174/504 - After reducing the fraction, the answer is -29/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/72-3/7 6/72-6/7 6/72-3/14 18/72-3/7 6/72-9/7 6/72-3/21 30/72-3/7 6/72-15/7 6/72-3/35 42/72-3/7 6/72-21/7 6/72-3/49