Add 18/16 and 80/9
1st number: 1 2/16, 2nd number: 8 8/9
18/16 + 80/9 is 721/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 9 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 16 × 9 = 144,
18/16 = 18 × 9/16 × 9 = 162/144 - Likewise, for the 2nd fraction, since 9 × 16 = 144,
80/9 = 80 × 16/9 × 16 = 1280/144 - Add the two like fractions:
162/144 + 1280/144 = 162 + 1280/144 = 1442/144 - 1442/144 simplified gives 721/72
- So, 18/16 + 80/9 = 721/72
In mixed form: 101/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/16+80/9 18/32+80/9 18/16+80/18 54/16+80/9 18/48+80/9 18/16+80/27 90/16+80/9 18/80+80/9 18/16+80/45 18/16+80/63