Subtract 24/81 from 3/10
3/10 - 24/81 is 1/270.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 10 × 81 = 810,
3/10 = 3 × 81/10 × 81 = 243/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
24/81 = 24 × 10/81 × 10 = 240/810 - Subtract the two like fractions:
243/810 - 240/810 = 243 - 240/810 = 3/810 - After reducing the fraction, the answer is 1/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/10-24/81 3/10-48/81 3/20-24/81 9/10-24/81 3/10-72/81 3/30-24/81 15/10-24/81 3/50-24/81 21/10-24/81 3/70-24/81