Subtract 14/80 from 12/28
12/28 - 14/80 is 71/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 28 × 20 = 560,
12/28 = 12 × 20/28 × 20 = 240/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
14/80 = 14 × 7/80 × 7 = 98/560 - Subtract the two like fractions:
240/560 - 98/560 = 240 - 98/560 = 142/560 - After reducing the fraction, the answer is 71/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/28-14/80 12/28-28/80 12/56-14/80 36/28-14/80 12/28-42/80 12/84-14/80 60/28-14/80 12/28-70/80 84/28-14/80 12/28-98/80