Subtract 72/60 from 4/84
1st number: 4/84, 2nd number: 1 12/60
4/84 - 72/60 is -121/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
4/84 = 4 × 5/84 × 5 = 20/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
72/60 = 72 × 7/60 × 7 = 504/420 - Subtract the two like fractions:
20/420 - 504/420 = 20 - 504/420 = -484/420 - After reducing the fraction, the answer is -121/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/84-72/60 12/84-72/60 20/84-72/60 28/84-72/60