Add 20/18 and 84/16
1st number: 1 2/18, 2nd number: 5 4/16
20/18 + 84/16 is 229/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 18 × 8 = 144,
20/18 = 20 × 8/18 × 8 = 160/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
84/16 = 84 × 9/16 × 9 = 756/144 - Add the two like fractions:
160/144 + 756/144 = 160 + 756/144 = 916/144 - 916/144 simplified gives 229/36
- So, 20/18 + 84/16 = 229/36
In mixed form: 613/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/18+84/16 20/36+84/16 20/18+84/32 60/18+84/16 20/54+84/16 20/18+84/48 20/90+84/16 20/18+84/80