Add 7/84 and 15/42
7/84 + 15/42 is 37/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
7/84 = 7 × 1/84 × 1 = 7/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
15/42 = 15 × 2/42 × 2 = 30/84 - Add the two like fractions:
7/84 + 30/84 = 7 + 30/84 = 37/84 - So, 7/84 + 15/42 = 37/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/84+15/42 7/84+30/42 7/84+15/84 21/84+15/42 7/84+45/42 35/84+15/42 7/84+75/42 49/84+15/42