Add 18/8 and 18/84
1st number: 2 2/8, 2nd number: 18/84
18/8 + 18/84 is 69/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
18/8 = 18 × 21/8 × 21 = 378/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
18/84 = 18 × 2/84 × 2 = 36/168 - Add the two like fractions:
378/168 + 36/168 = 378 + 36/168 = 414/168 - 414/168 simplified gives 69/28
- So, 18/8 + 18/84 = 69/28
In mixed form: 213/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/8+18/84 18/8+36/84 18/16+18/84 54/8+18/84 18/8+54/84 18/24+18/84 90/8+18/84 18/8+90/84 18/40+18/84 18/56+18/84