Add 3/84 and 3/9
3/84 + 3/9 is 31/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
3/84 = 3 × 3/84 × 3 = 9/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
3/9 = 3 × 28/9 × 28 = 84/252 - Add the two like fractions:
9/252 + 84/252 = 9 + 84/252 = 93/252 - 93/252 simplified gives 31/84
- So, 3/84 + 3/9 = 31/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/84+3/9 3/84+6/9 3/84+3/18 9/84+3/9 3/84+3/27 15/84+3/9 3/84+15/9 3/84+3/45 21/84+3/9 3/84+21/9 3/84+3/63