Add 3/80 and 18/5
1st number: 3/80, 2nd number: 3 3/5
3/80 + 18/5 is 291/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 5 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
3/80 = 3 × 1/80 × 1 = 3/80 - Likewise, for the 2nd fraction, since 5 × 16 = 80,
18/5 = 18 × 16/5 × 16 = 288/80 - Add the two like fractions:
3/80 + 288/80 = 3 + 288/80 = 291/80 - So, 3/80 + 18/5 = 291/80
In mixed form: 351/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/80+18/5 3/80+36/5 3/80+18/10 9/80+18/5 3/80+54/5 3/80+18/15 15/80+18/5 3/80+90/5 3/80+18/25 21/80+18/5 3/80+18/35