Add 80/16 and 70/18
1st number: 5 0/16, 2nd number: 3 16/18
80/16 + 70/18 is 80/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 18 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 16 × 9 = 144,
80/16 = 80 × 9/16 × 9 = 720/144 - Likewise, for the 2nd fraction, since 18 × 8 = 144,
70/18 = 70 × 8/18 × 8 = 560/144 - Add the two like fractions:
720/144 + 560/144 = 720 + 560/144 = 1280/144 - 1280/144 simplified gives 80/9
- So, 80/16 + 70/18 = 80/9
In mixed form: 88/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/32+70/18 80/16+70/36 80/48+70/18 80/16+70/54 80/16+70/90