Add 27/84 and 36/20
1st number: 27/84, 2nd number: 1 16/20
27/84 + 36/20 is 297/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
27/84 = 27 × 5/84 × 5 = 135/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
36/20 = 36 × 21/20 × 21 = 756/420 - Add the two like fractions:
135/420 + 756/420 = 135 + 756/420 = 891/420 - 891/420 simplified gives 297/140
- So, 27/84 + 36/20 = 297/140
In mixed form: 217/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/84+36/20 27/84+72/20 27/84+36/40 81/84+36/20 27/84+36/60