Add 27/81 and 6/20
27/81 + 6/20 is 19/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 20 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 81 × 20 = 1620,
27/81 = 27 × 20/81 × 20 = 540/1620 - Likewise, for the 2nd fraction, since 20 × 81 = 1620,
6/20 = 6 × 81/20 × 81 = 486/1620 - Add the two like fractions:
540/1620 + 486/1620 = 540 + 486/1620 = 1026/1620 - 1026/1620 simplified gives 19/30
- So, 27/81 + 6/20 = 19/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/81+6/20 27/81+12/20 27/81+6/40 27/81+18/20 27/81+6/60 27/81+30/20 27/81+42/20