Subtract 14/12 from 28/80
1st number: 28/80, 2nd number: 1 2/12
28/80 - 14/12 is -49/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 12 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
28/80 = 28 × 3/80 × 3 = 84/240 - Likewise, for the 2nd fraction, since 12 × 20 = 240,
14/12 = 14 × 20/12 × 20 = 280/240 - Subtract the two like fractions:
84/240 - 280/240 = 84 - 280/240 = -196/240 - After reducing the fraction, the answer is -49/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/80-14/12 28/80-28/12 28/80-14/24 84/80-14/12 28/80-42/12 28/80-14/36 28/80-70/12 28/80-14/60 28/80-98/12 28/80-14/84