Add 84/18 and 9/14
1st number: 4 12/18, 2nd number: 9/14
84/18 + 9/14 is 223/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 14 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
84/18 = 84 × 7/18 × 7 = 588/126 - Likewise, for the 2nd fraction, since 14 × 9 = 126,
9/14 = 9 × 9/14 × 9 = 81/126 - Add the two like fractions:
588/126 + 81/126 = 588 + 81/126 = 669/126 - 669/126 simplified gives 223/42
- So, 84/18 + 9/14 = 223/42
In mixed form: 513/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18+18/14 84/36+9/14 84/18+9/28 84/18+27/14 84/54+9/14 84/18+9/42 84/18+45/14 84/90+9/14 84/18+9/70 84/18+63/14 84/18+9/98