Add 7/2 and 15/84
1st number: 3 1/2, 2nd number: 15/84
7/2 + 15/84 is 103/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 2 × 42 = 84,
7/2 = 7 × 42/2 × 42 = 294/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
15/84 = 15 × 1/84 × 1 = 15/84 - Add the two like fractions:
294/84 + 15/84 = 294 + 15/84 = 309/84 - 309/84 simplified gives 103/28
- So, 7/2 + 15/84 = 103/28
In mixed form: 319/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/2+15/84 7/2+30/84 7/4+15/84 21/2+15/84 7/2+45/84 7/6+15/84 35/2+15/84 7/2+75/84 7/10+15/84 49/2+15/84 7/14+15/84