Add 45/8 and 80/40
1st number: 5 5/8, 2nd number: 2 0/40
45/8 + 80/40 is 61/8.
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,
45/8 = 45 × 5/8 × 5 = 225/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
80/40 = 80 × 1/40 × 1 = 80/40 - Add the two like fractions:
225/40 + 80/40 = 225 + 80/40 = 305/40 - 305/40 simplified gives 61/8
- So, 45/8 + 80/40 = 61/8
In mixed form: 75/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/8+80/40 45/16+80/40 45/24+80/40 45/40+80/40 45/56+80/40