Add 84/28 and 24/63
1st number: 3 0/28, 2nd number: 24/63
84/28 + 24/63 is 71/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
84/28 = 84 × 9/28 × 9 = 756/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
24/63 = 24 × 4/63 × 4 = 96/252 - Add the two like fractions:
756/252 + 96/252 = 756 + 96/252 = 852/252 - 852/252 simplified gives 71/21
- So, 84/28 + 24/63 = 71/21
In mixed form: 38/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28+48/63 84/56+24/63 84/28+72/63