Add 40/27 and 20/81
1st number: 1 13/27, 2nd number: 20/81
40/27 + 20/81 is 140/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 27 × 3 = 81,
40/27 = 40 × 3/27 × 3 = 120/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
20/81 = 20 × 1/81 × 1 = 20/81 - Add the two like fractions:
120/81 + 20/81 = 120 + 20/81 = 140/81 - So, 40/27 + 20/81 = 140/81
In mixed form: 159/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/27+20/81 40/27+40/81 40/54+20/81 40/27+60/81 40/81+20/81