Add 9/14 and 84/63
1st number: 9/14, 2nd number: 1 21/63
9/14 + 84/63 is 83/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 14 × 9 = 126,
9/14 = 9 × 9/14 × 9 = 81/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
84/63 = 84 × 2/63 × 2 = 168/126 - Add the two like fractions:
81/126 + 168/126 = 81 + 168/126 = 249/126 - 249/126 simplified gives 83/42
- So, 9/14 + 84/63 = 83/42
In mixed form: 141/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/14+84/63 9/28+84/63 27/14+84/63 9/42+84/63 45/14+84/63 9/70+84/63 63/14+84/63 9/98+84/63