Add 8/84 and 54/18
1st number: 8/84, 2nd number: 3 0/18
8/84 + 54/18 is 65/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
8/84 = 8 × 3/84 × 3 = 24/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
54/18 = 54 × 14/18 × 14 = 756/252 - Add the two like fractions:
24/252 + 756/252 = 24 + 756/252 = 780/252 - 780/252 simplified gives 65/21
- So, 8/84 + 54/18 = 65/21
In mixed form: 32/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/84+54/18 8/84+54/36 24/84+54/18 40/84+54/18 8/84+54/90 56/84+54/18