Add 84/21 and 27/8
1st number: 4 0/21, 2nd number: 3 3/8
84/21 + 27/8 is 59/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
84/21 = 84 × 8/21 × 8 = 672/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
27/8 = 27 × 21/8 × 21 = 567/168 - Add the two like fractions:
672/168 + 567/168 = 672 + 567/168 = 1239/168 - 1239/168 simplified gives 59/8
- So, 84/21 + 27/8 = 59/8
In mixed form: 73/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/21+54/8 84/42+27/8 84/21+27/16 84/21+81/8 84/63+27/8 84/21+27/24 84/21+27/40 84/21+27/56