Add 84/9 and 7/20
1st number: 9 3/9, 2nd number: 7/20
84/9 + 7/20 is 581/60.
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,
84/9 = 84 × 20/9 × 20 = 1680/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
7/20 = 7 × 9/20 × 9 = 63/180 - Add the two like fractions:
1680/180 + 63/180 = 1680 + 63/180 = 1743/180 - 1743/180 simplified gives 581/60
- So, 84/9 + 7/20 = 581/60
In mixed form: 941/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/9+14/20 84/18+7/20 84/9+7/40 84/9+21/20 84/27+7/20 84/9+7/60 84/9+35/20 84/45+7/20 84/9+49/20 84/63+7/20