Add 21/6 and 40/84
1st number: 3 3/6, 2nd number: 40/84
21/6 + 40/84 is 167/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 6 × 14 = 84,
21/6 = 21 × 14/6 × 14 = 294/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
40/84 = 40 × 1/84 × 1 = 40/84 - Add the two like fractions:
294/84 + 40/84 = 294 + 40/84 = 334/84 - 334/84 simplified gives 167/42
- So, 21/6 + 40/84 = 167/42
In mixed form: 341/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6+40/84 21/6+80/84 21/12+40/84 63/6+40/84 21/18+40/84 21/30+40/84 21/42+40/84