Add 84/27 and 21/5
1st number: 3 3/27, 2nd number: 4 1/5
84/27 + 21/5 is 329/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 5 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 27 × 5 = 135,
84/27 = 84 × 5/27 × 5 = 420/135 - Likewise, for the 2nd fraction, since 5 × 27 = 135,
21/5 = 21 × 27/5 × 27 = 567/135 - Add the two like fractions:
420/135 + 567/135 = 420 + 567/135 = 987/135 - 987/135 simplified gives 329/45
- So, 84/27 + 21/5 = 329/45
In mixed form: 714/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/27+42/5 84/54+21/5 84/27+21/10 84/27+63/5 84/81+21/5 84/27+21/15 84/27+21/25 84/27+21/35