Add 30/84 and 48/63
30/84 + 48/63 is 47/42.
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,
30/84 = 30 × 3/84 × 3 = 90/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
48/63 = 48 × 4/63 × 4 = 192/252 - Add the two like fractions:
90/252 + 192/252 = 90 + 192/252 = 282/252 - 282/252 simplified gives 47/42
- So, 30/84 + 48/63 = 47/42
In mixed form: 15/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/84+48/63 30/84+96/63 90/84+48/63