Add 3/5 and 28/84
3/5 + 28/84 is 14/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 5 × 84 = 420,
3/5 = 3 × 84/5 × 84 = 252/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
28/84 = 28 × 5/84 × 5 = 140/420 - Add the two like fractions:
252/420 + 140/420 = 252 + 140/420 = 392/420 - 392/420 simplified gives 14/15
- So, 3/5 + 28/84 = 14/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/5+28/84 3/5+56/84 3/10+28/84 9/5+28/84 3/15+28/84 15/5+28/84 3/25+28/84 21/5+28/84 3/35+28/84