Add 70/81 and 1/9
70/81 + 1/9 is 79/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 9 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 81 × 1 = 81,
70/81 = 70 × 1/81 × 1 = 70/81 - Likewise, for the 2nd fraction, since 9 × 9 = 81,
1/9 = 1 × 9/9 × 9 = 9/81 - Add the two like fractions:
70/81 + 9/81 = 70 + 9/81 = 79/81 - So, 70/81 + 1/9 = 79/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/81+2/9 70/81+1/18 70/81+3/9 70/81+1/27 70/81+5/9 70/81+1/45 70/81+7/9 70/81+1/63