Add 9/18 and 90/84
1st number: 9/18, 2nd number: 1 6/84
9/18 + 90/84 is 11/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
9/18 = 9 × 14/18 × 14 = 126/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
90/84 = 90 × 3/84 × 3 = 270/252 - Add the two like fractions:
126/252 + 270/252 = 126 + 270/252 = 396/252 - 396/252 simplified gives 11/7
- So, 9/18 + 90/84 = 11/7
In mixed form: 14/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 9/36+90/84 27/18+90/84 9/54+90/84 45/18+90/84 9/90+90/84 63/18+90/84