Add 8/15 and 18/84
8/15 + 18/84 is 157/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
8/15 = 8 × 28/15 × 28 = 224/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
18/84 = 18 × 5/84 × 5 = 90/420 - Add the two like fractions:
224/420 + 90/420 = 224 + 90/420 = 314/420 - 314/420 simplified gives 157/210
- So, 8/15 + 18/84 = 157/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/15+18/84 8/15+36/84 8/30+18/84 24/15+18/84 8/15+54/84 8/45+18/84 40/15+18/84 8/15+90/84 8/75+18/84 56/15+18/84