Subtract 9/72 from 6/28
6/28 - 9/72 is 5/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 28 × 18 = 504,
6/28 = 6 × 18/28 × 18 = 108/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
9/72 = 9 × 7/72 × 7 = 63/504 - Subtract the two like fractions:
108/504 - 63/504 = 108 - 63/504 = 45/504 - After reducing the fraction, the answer is 5/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/28-9/72 6/28-18/72 6/56-9/72 18/28-9/72 6/28-27/72 6/84-9/72 30/28-9/72 6/28-45/72 42/28-9/72 6/28-63/72