Add 80/8 and 45/40
1st number: 10 0/8, 2nd number: 1 5/40
80/8 + 45/40 is 89/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
80/8 = 80 × 5/8 × 5 = 400/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
45/40 = 45 × 1/40 × 1 = 45/40 - Add the two like fractions:
400/40 + 45/40 = 400 + 45/40 = 445/40 - 445/40 simplified gives 89/8
- So, 80/8 + 45/40 = 89/8
In mixed form: 111/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8+90/40 80/16+45/40 80/8+45/80 80/24+45/40 80/40+45/40 80/56+45/40