Add 4/84 and 2/5
4/84 + 2/5 is 47/105.
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,
4/84 = 4 × 5/84 × 5 = 20/420 - Likewise, for the 2nd fraction, since 5 × 84 = 420,
2/5 = 2 × 84/5 × 84 = 168/420 - Add the two like fractions:
20/420 + 168/420 = 20 + 168/420 = 188/420 - 188/420 simplified gives 47/105
- So, 4/84 + 2/5 = 47/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/84+2/5 4/84+4/5 4/84+2/10 12/84+2/5 4/84+6/5 4/84+2/15 20/84+2/5 4/84+10/5 4/84+2/25 28/84+2/5 4/84+14/5 4/84+2/35