Add 6/9 and 90/20
1st number: 6/9, 2nd number: 4 10/20
6/9 + 90/20 is 31/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
6/9 = 6 × 20/9 × 20 = 120/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
90/20 = 90 × 9/20 × 9 = 810/180 - Add the two like fractions:
120/180 + 810/180 = 120 + 810/180 = 930/180 - 930/180 simplified gives 31/6
- So, 6/9 + 90/20 = 31/6
In mixed form: 51/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/9+90/20 6/18+90/20 6/9+90/40 18/9+90/20 6/27+90/20 6/9+90/60 30/9+90/20 6/45+90/20 42/9+90/20 6/63+90/20