Subtract 28/80 from 14/15
14/15 - 28/80 is 7/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
14/15 = 14 × 16/15 × 16 = 224/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
28/80 = 28 × 3/80 × 3 = 84/240 - Subtract the two like fractions:
224/240 - 84/240 = 224 - 84/240 = 140/240 - After reducing the fraction, the answer is 7/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/15-28/80 14/15-56/80 14/30-28/80 42/15-28/80 14/15-84/80 14/45-28/80 70/15-28/80 14/75-28/80 98/15-28/80