Add 9/14 and 84/20
1st number: 9/14, 2nd number: 4 4/20
9/14 + 84/20 is 339/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 14 × 10 = 140,
9/14 = 9 × 10/14 × 10 = 90/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
84/20 = 84 × 7/20 × 7 = 588/140 - Add the two like fractions:
90/140 + 588/140 = 90 + 588/140 = 678/140 - 678/140 simplified gives 339/70
- So, 9/14 + 84/20 = 339/70
In mixed form: 459/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/14+84/20 9/28+84/20 9/14+84/40 27/14+84/20 9/42+84/20 9/14+84/60 45/14+84/20 9/70+84/20 63/14+84/20 9/98+84/20