Subtract 63/72 from 60/84
60/84 - 63/72 is -9/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 84 × 6 = 504,
60/84 = 60 × 6/84 × 6 = 360/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
63/72 = 63 × 7/72 × 7 = 441/504 - Subtract the two like fractions:
360/504 - 441/504 = 360 - 441/504 = -81/504 - After reducing the fraction, the answer is -9/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: