Subtract 27/40 from 80/12
1st number: 6 8/12, 2nd number: 27/40
80/12 - 27/40 is 719/120.
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,
80/12 = 80 × 10/12 × 10 = 800/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
27/40 = 27 × 3/40 × 3 = 81/120 - Subtract the two like fractions:
800/120 - 81/120 = 800 - 81/120 = 719/120 - In mixed form: 5119/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12-54/40 80/24-27/40 80/12-27/80 80/12-81/40 80/36-27/40 80/60-27/40 80/84-27/40