Add 27/21 and 4/84
1st number: 1 6/21, 2nd number: 4/84
27/21 + 4/84 is 4/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
27/21 = 27 × 4/21 × 4 = 108/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
4/84 = 4 × 1/84 × 1 = 4/84 - Add the two like fractions:
108/84 + 4/84 = 108 + 4/84 = 112/84 - 112/84 simplified gives 4/3
- So, 27/21 + 4/84 = 4/3
In mixed form: 11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/21+4/84 27/21+8/84 27/42+4/84 81/21+4/84 27/21+12/84 27/63+4/84 27/21+20/84 27/21+28/84