Add 90/60 and 80/9
1st number: 1 30/60, 2nd number: 8 8/9
90/60 + 80/9 is 187/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
90/60 = 90 × 3/60 × 3 = 270/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
80/9 = 80 × 20/9 × 20 = 1600/180 - Add the two like fractions:
270/180 + 1600/180 = 270 + 1600/180 = 1870/180 - 1870/180 simplified gives 187/18
- So, 90/60 + 80/9 = 187/18
In mixed form: 107/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/60+80/18 90/60+80/27 90/60+80/45 90/60+80/63