Add 6/8 and 84/63
1st number: 6/8, 2nd number: 1 21/63
6/8 + 84/63 is 25/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 8 × 63 = 504,
6/8 = 6 × 63/8 × 63 = 378/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
84/63 = 84 × 8/63 × 8 = 672/504 - Add the two like fractions:
378/504 + 672/504 = 378 + 672/504 = 1050/504 - 1050/504 simplified gives 25/12
- So, 6/8 + 84/63 = 25/12
In mixed form: 21/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/8+84/63 6/16+84/63 18/8+84/63 6/24+84/63 30/8+84/63 6/40+84/63 42/8+84/63 6/56+84/63