Add 15/20 and 84/5
1st number: 15/20, 2nd number: 16 4/5
15/20 + 84/5 is 351/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
15/20 = 15 × 1/20 × 1 = 15/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
84/5 = 84 × 4/5 × 4 = 336/20 - Add the two like fractions:
15/20 + 336/20 = 15 + 336/20 = 351/20 - So, 15/20 + 84/5 = 351/20
In mixed form: 1711/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/20+84/5 15/40+84/5 15/20+84/10 45/20+84/5 15/60+84/5 15/20+84/15 75/20+84/5 15/20+84/25 15/20+84/35