Add 80/5 and 18/40
1st number: 16 0/5, 2nd number: 18/40
80/5 + 18/40 is 329/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
80/5 = 80 × 8/5 × 8 = 640/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
18/40 = 18 × 1/40 × 1 = 18/40 - Add the two like fractions:
640/40 + 18/40 = 640 + 18/40 = 658/40 - 658/40 simplified gives 329/20
- So, 80/5 + 18/40 = 329/20
In mixed form: 169/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/5+36/40 80/10+18/40 80/5+18/80 80/5+54/40 80/15+18/40 80/5+90/40 80/25+18/40 80/35+18/40