Add 7/2 and 81/5
1st number: 3 1/2, 2nd number: 16 1/5
7/2 + 81/5 is 197/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 5 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
7/2 = 7 × 5/2 × 5 = 35/10 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
81/5 = 81 × 2/5 × 2 = 162/10 - Add the two like fractions:
35/10 + 162/10 = 35 + 162/10 = 197/10 - So, 7/2 + 81/5 = 197/10
In mixed form: 197/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/2+81/5 7/4+81/5 7/2+81/10 21/2+81/5 7/6+81/5 7/2+81/15 35/2+81/5 7/10+81/5 7/2+81/25 49/2+81/5 7/14+81/5 7/2+81/35