Add 63/9 and 84/63
1st number: 7 0/9, 2nd number: 1 21/63
63/9 + 84/63 is 25/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
63/9 = 63 × 7/9 × 7 = 441/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
84/63 = 84 × 1/63 × 1 = 84/63 - Add the two like fractions:
441/63 + 84/63 = 441 + 84/63 = 525/63 - 525/63 simplified gives 25/3
- So, 63/9 + 84/63 = 25/3
In mixed form: 81/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/18+84/63 63/27+84/63 63/45+84/63