Add 81/3 and 20/80
1st number: 27 0/3, 2nd number: 20/80
81/3 + 20/80 is 109/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 3 × 80 = 240,
81/3 = 81 × 80/3 × 80 = 6480/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
20/80 = 20 × 3/80 × 3 = 60/240 - Add the two like fractions:
6480/240 + 60/240 = 6480 + 60/240 = 6540/240 - 6540/240 simplified gives 109/4
- So, 81/3 + 20/80 = 109/4
In mixed form: 271/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/3+40/80 81/6+20/80 81/3+60/80 81/9+20/80 81/15+20/80 81/21+20/80