Add 27/70 and 5/81
27/70 + 5/81 is 2537/5670.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 81 is 5670
Next, find the equivalent fraction of both fractional numbers with denominator 5670 - For the 1st fraction, since 70 × 81 = 5670,
27/70 = 27 × 81/70 × 81 = 2187/5670 - Likewise, for the 2nd fraction, since 81 × 70 = 5670,
5/81 = 5 × 70/81 × 70 = 350/5670 - Add the two like fractions:
2187/5670 + 350/5670 = 2187 + 350/5670 = 2537/5670 - So, 27/70 + 5/81 = 2537/5670
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/70+5/81 27/70+10/81 81/70+5/81 27/70+15/81 27/70+25/81 27/70+35/81