Subtract 4/72 from 12/5
1st number: 2 2/5, 2nd number: 4/72
12/5 - 4/72 is 211/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 5 × 72 = 360,
12/5 = 12 × 72/5 × 72 = 864/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
4/72 = 4 × 5/72 × 5 = 20/360 - Subtract the two like fractions:
864/360 - 20/360 = 864 - 20/360 = 844/360 - After reducing the fraction, the answer is 211/90
- In mixed form: 231/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/5-4/72 12/5-8/72 12/10-4/72 36/5-4/72 12/5-12/72 12/15-4/72 60/5-4/72 12/5-20/72 12/25-4/72 84/5-4/72 12/5-28/72 12/35-4/72