Add 5/18 and 18/84
5/18 + 18/84 is 31/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
5/18 = 5 × 14/18 × 14 = 70/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
18/84 = 18 × 3/84 × 3 = 54/252 - Add the two like fractions:
70/252 + 54/252 = 70 + 54/252 = 124/252 - 124/252 simplified gives 31/63
- So, 5/18 + 18/84 = 31/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18+18/84 5/18+36/84 5/36+18/84 15/18+18/84 5/18+54/84 5/54+18/84 25/18+18/84 5/18+90/84 5/90+18/84 35/18+18/84