Add 45/80 and 50/40
1st number: 45/80, 2nd number: 1 10/40
45/80 + 50/40 is 29/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
45/80 = 45 × 1/80 × 1 = 45/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
50/40 = 50 × 2/40 × 2 = 100/80 - Add the two like fractions:
45/80 + 100/80 = 45 + 100/80 = 145/80 - 145/80 simplified gives 29/16
- So, 45/80 + 50/40 = 29/16
In mixed form: 113/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/80+50/40 45/80+50/80