Subtract 14/80 from 5/21
5/21 - 14/80 is 53/840.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 21 × 80 = 1680,
5/21 = 5 × 80/21 × 80 = 400/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
14/80 = 14 × 21/80 × 21 = 294/1680 - Subtract the two like fractions:
400/1680 - 294/1680 = 400 - 294/1680 = 106/1680 - After reducing the fraction, the answer is 53/840
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/21-14/80 5/21-28/80 5/42-14/80 15/21-14/80 5/21-42/80 5/63-14/80 25/21-14/80 5/21-70/80 35/21-14/80 5/21-98/80