Add 56/84 and 84/63
1st number: 56/84, 2nd number: 1 21/63
56/84 + 84/63 is 2/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
56/84 = 56 × 3/84 × 3 = 168/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
84/63 = 84 × 4/63 × 4 = 336/252 - Add the two like fractions:
168/252 + 336/252 = 168 + 336/252 = 504/252 - 504/252 simplified gives 2/1
- So, 56/84 + 84/63 = 2/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: