Add 84/63 and 3/28
1st number: 1 21/63, 2nd number: 3/28
84/63 + 3/28 is 121/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
84/63 = 84 × 4/63 × 4 = 336/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
3/28 = 3 × 9/28 × 9 = 27/252 - Add the two like fractions:
336/252 + 27/252 = 336 + 27/252 = 363/252 - 363/252 simplified gives 121/84
- So, 84/63 + 3/28 = 121/84
In mixed form: 137/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/63+6/28 84/63+3/56 84/63+9/28 84/63+3/84 84/63+15/28 84/63+21/28