Add 80/30 and 35/90
1st number: 2 20/30, 2nd number: 35/90
80/30 + 35/90 is 55/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 90 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 90 × 1 = 90,
35/90 = 35 × 1/90 × 1 = 35/90 - Add the two like fractions:
240/90 + 35/90 = 240 + 35/90 = 275/90 - 275/90 simplified gives 55/18
- So, 80/30 + 35/90 = 55/18
In mixed form: 31/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/30+70/90 80/60+35/90 80/90+35/90