Add 84/63 and 90/56
1st number: 1 21/63, 2nd number: 1 34/56
84/63 + 90/56 is 247/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
84/63 = 84 × 8/63 × 8 = 672/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
90/56 = 90 × 9/56 × 9 = 810/504 - Add the two like fractions:
672/504 + 810/504 = 672 + 810/504 = 1482/504 - 1482/504 simplified gives 247/84
- So, 84/63 + 90/56 = 247/84
In mixed form: 279/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: