Add 1/81 and 9/70
1/81 + 9/70 is 799/5670.
Steps for adding 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,
1/81 = 1 × 70/81 × 70 = 70/5670 - Likewise, for the 2nd fraction, since 70 × 81 = 5670,
9/70 = 9 × 81/70 × 81 = 729/5670 - Add the two like fractions:
70/5670 + 729/5670 = 70 + 729/5670 = 799/5670 - So, 1/81 + 9/70 = 799/5670
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/81+9/70 1/81+18/70 3/81+9/70 1/81+27/70 5/81+9/70 1/81+45/70 7/81+9/70 1/81+63/70