Subtract 48/72 from 9/56
9/56 - 48/72 is -85/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
9/56 = 9 × 9/56 × 9 = 81/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
48/72 = 48 × 7/72 × 7 = 336/504 - Subtract the two like fractions:
81/504 - 336/504 = 81 - 336/504 = -255/504 - After reducing the fraction, the answer is -85/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/56-48/72 9/56-96/72 27/56-48/72 45/56-48/72 63/56-48/72