Subtract 70/81 from 24/9
1st number: 2 6/9, 2nd number: 70/81
24/9 - 70/81 is 146/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 9 × 9 = 81,
24/9 = 24 × 9/9 × 9 = 216/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
70/81 = 70 × 1/81 × 1 = 70/81 - Subtract the two like fractions:
216/81 - 70/81 = 216 - 70/81 = 146/81 - In mixed form: 165/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/9-70/81 24/18-70/81 72/9-70/81 24/27-70/81 24/45-70/81 24/63-70/81