Add 2/84 and 90/9
1st number: 2/84, 2nd number: 10 0/9
2/84 + 90/9 is 421/42.
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,
2/84 = 2 × 3/84 × 3 = 6/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
90/9 = 90 × 28/9 × 28 = 2520/252 - Add the two like fractions:
6/252 + 2520/252 = 6 + 2520/252 = 2526/252 - 2526/252 simplified gives 421/42
- So, 2/84 + 90/9 = 421/42
In mixed form: 101/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/84+90/9 2/84+90/18 6/84+90/9 2/84+90/27 10/84+90/9 2/84+90/45 14/84+90/9 2/84+90/63