Add 80/18 and 60/81
1st number: 4 8/18, 2nd number: 60/81
80/18 + 60/81 is 140/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 18 × 9 = 162,
80/18 = 80 × 9/18 × 9 = 720/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
60/81 = 60 × 2/81 × 2 = 120/162 - Add the two like fractions:
720/162 + 120/162 = 720 + 120/162 = 840/162 - 840/162 simplified gives 140/27
- So, 80/18 + 60/81 = 140/27
In mixed form: 55/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/36+60/81 80/54+60/81 80/90+60/81