Add 40/5 and 9/80
1st number: 8 0/5, 2nd number: 9/80
40/5 + 9/80 is 649/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
40/5 = 40 × 16/5 × 16 = 640/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
9/80 = 9 × 1/80 × 1 = 9/80 - Add the two like fractions:
640/80 + 9/80 = 640 + 9/80 = 649/80 - So, 40/5 + 9/80 = 649/80
In mixed form: 89/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/5+9/80 40/5+18/80 40/10+9/80 40/5+27/80 40/15+9/80 40/5+45/80 40/25+9/80 40/5+63/80 40/35+9/80