Subtract 14/70 from 14/81
14/81 - 14/70 is -11/405.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 70 is 5670
Next, find the equivalent fraction of both fractional numbers with denominator 5670 - For the 1st fraction, since 81 × 70 = 5670,
14/81 = 14 × 70/81 × 70 = 980/5670 - Likewise, for the 2nd fraction, since 70 × 81 = 5670,
14/70 = 14 × 81/70 × 81 = 1134/5670 - Subtract the two like fractions:
980/5670 - 1134/5670 = 980 - 1134/5670 = -154/5670 - After reducing the fraction, the answer is -11/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/81-14/70 14/81-28/70 42/81-14/70 14/81-42/70 70/81-14/70 98/81-14/70 14/81-98/70