Subtract 84/60 from 4/72
1st number: 4/72, 2nd number: 1 24/60
4/72 - 84/60 is -121/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 60 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
4/72 = 4 × 5/72 × 5 = 20/360 - Likewise, for the 2nd fraction, since 60 × 6 = 360,
84/60 = 84 × 6/60 × 6 = 504/360 - Subtract the two like fractions:
20/360 - 504/360 = 20 - 504/360 = -484/360 - After reducing the fraction, the answer is -121/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/72-84/60 12/72-84/60 20/72-84/60 28/72-84/60