Add 7/2 and 2/84
1st number: 3 1/2, 2nd number: 2/84
7/2 + 2/84 is 74/21.
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,
2/84 = 2 × 1/84 × 1 = 2/84 - Add the two like fractions:
294/84 + 2/84 = 294 + 2/84 = 296/84 - 296/84 simplified gives 74/21
- So, 7/2 + 2/84 = 74/21
In mixed form: 311/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/2+2/84 7/2+4/84 7/4+2/84 21/2+2/84 7/2+6/84 7/6+2/84 35/2+2/84 7/2+10/84 7/10+2/84 49/2+2/84 7/2+14/84 7/14+2/84