Add 15/35 and 7/84
15/35 + 7/84 is 43/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
15/35 = 15 × 12/35 × 12 = 180/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
7/84 = 7 × 5/84 × 5 = 35/420 - Add the two like fractions:
180/420 + 35/420 = 180 + 35/420 = 215/420 - 215/420 simplified gives 43/84
- So, 15/35 + 7/84 = 43/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/35+7/84 15/35+14/84 15/70+7/84 45/35+7/84 15/35+21/84 75/35+7/84 15/35+35/84 15/35+49/84