Add 7/2 and 84/72
1st number: 3 1/2, 2nd number: 1 12/72
7/2 + 84/72 is 14/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 2 × 36 = 72,
7/2 = 7 × 36/2 × 36 = 252/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
84/72 = 84 × 1/72 × 1 = 84/72 - Add the two like fractions:
252/72 + 84/72 = 252 + 84/72 = 336/72 - 336/72 simplified gives 14/3
- So, 7/2 + 84/72 = 14/3
In mixed form: 42/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/2+84/72 7/4+84/72 21/2+84/72 7/6+84/72 35/2+84/72 7/10+84/72 49/2+84/72 7/14+84/72