Subtract 12/40 from 72/12
1st number: 6 0/12, 2nd number: 12/40
72/12 - 12/40 is 57/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
72/12 = 72 × 10/12 × 10 = 720/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
12/40 = 12 × 3/40 × 3 = 36/120 - Subtract the two like fractions:
720/120 - 36/120 = 720 - 36/120 = 684/120 - After reducing the fraction, the answer is 57/10
- In mixed form: 57/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/12-24/40 72/24-12/40 72/12-12/80 72/12-36/40 72/36-12/40 72/12-60/40 72/60-12/40 72/12-84/40 72/84-12/40