Subtract 28/40 from 14/12
1st number: 1 2/12, 2nd number: 28/40
14/12 - 28/40 is 7/15.
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,
14/12 = 14 × 10/12 × 10 = 140/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
28/40 = 28 × 3/40 × 3 = 84/120 - Subtract the two like fractions:
140/120 - 84/120 = 140 - 84/120 = 56/120 - After reducing the fraction, the answer is 7/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/12-28/40 14/12-56/40 14/24-28/40 14/12-28/80 42/12-28/40 14/12-84/40 14/36-28/40 70/12-28/40 14/60-28/40 98/12-28/40 14/84-28/40