Add 81/18 and 80/14
1st number: 4 9/18, 2nd number: 5 10/14
81/18 + 80/14 is 143/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 14 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
81/18 = 81 × 7/18 × 7 = 567/126 - Likewise, for the 2nd fraction, since 14 × 9 = 126,
80/14 = 80 × 9/14 × 9 = 720/126 - Add the two like fractions:
567/126 + 720/126 = 567 + 720/126 = 1287/126 - 1287/126 simplified gives 143/14
- So, 81/18 + 80/14 = 143/14
In mixed form: 103/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/36+80/14 81/18+80/28 81/54+80/14 81/18+80/42 81/90+80/14 81/18+80/70 81/18+80/98