Add 3/84 and 81/5
1st number: 3/84, 2nd number: 16 1/5
3/84 + 81/5 is 2273/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 5 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
3/84 = 3 × 5/84 × 5 = 15/420 - Likewise, for the 2nd fraction, since 5 × 84 = 420,
81/5 = 81 × 84/5 × 84 = 6804/420 - Add the two like fractions:
15/420 + 6804/420 = 15 + 6804/420 = 6819/420 - 6819/420 simplified gives 2273/140
- So, 3/84 + 81/5 = 2273/140
In mixed form: 1633/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/84+81/5 3/84+81/10 9/84+81/5 3/84+81/15 15/84+81/5 3/84+81/25 21/84+81/5 3/84+81/35