Add 80/30 and 70/9
1st number: 2 20/30, 2nd number: 7 7/9
80/30 + 70/9 is 94/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
80/30 = 80 × 3/30 × 3 = 240/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
70/9 = 70 × 10/9 × 10 = 700/90 - Add the two like fractions:
240/90 + 700/90 = 240 + 700/90 = 940/90 - 940/90 simplified gives 94/9
- So, 80/30 + 70/9 = 94/9
In mixed form: 104/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/60+70/9 80/30+70/18 80/90+70/9 80/30+70/27 80/30+70/45 80/30+70/63