Add 27/84 and 5/15
27/84 + 5/15 is 55/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
27/84 = 27 × 5/84 × 5 = 135/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
5/15 = 5 × 28/15 × 28 = 140/420 - Add the two like fractions:
135/420 + 140/420 = 135 + 140/420 = 275/420 - 275/420 simplified gives 55/84
- So, 27/84 + 5/15 = 55/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/84+5/15 27/84+10/15 27/84+5/30 81/84+5/15 27/84+5/45 27/84+25/15 27/84+5/75 27/84+35/15