Add 80/4 and 70/18
1st number: 20 0/4, 2nd number: 3 16/18
80/4 + 70/18 is 215/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
80/4 = 80 × 9/4 × 9 = 720/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
70/18 = 70 × 2/18 × 2 = 140/36 - Add the two like fractions:
720/36 + 140/36 = 720 + 140/36 = 860/36 - 860/36 simplified gives 215/9
- So, 80/4 + 70/18 = 215/9
In mixed form: 238/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8+70/18 80/4+70/36 80/12+70/18 80/4+70/54 80/20+70/18 80/4+70/90 80/28+70/18