Add 30/84 and 36/63
30/84 + 36/63 is 13/14.
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,
36/63 = 36 × 4/63 × 4 = 144/252 - Add the two like fractions:
90/252 + 144/252 = 90 + 144/252 = 234/252 - 234/252 simplified gives 13/14
- So, 30/84 + 36/63 = 13/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/84+36/63 30/84+72/63 90/84+36/63