Add 20/40 and 80/5
1st number: 20/40, 2nd number: 16 0/5
20/40 + 80/5 is 33/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 5 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
20/40 = 20 × 1/40 × 1 = 20/40 - Likewise, for the 2nd fraction, since 5 × 8 = 40,
80/5 = 80 × 8/5 × 8 = 640/40 - Add the two like fractions:
20/40 + 640/40 = 20 + 640/40 = 660/40 - 660/40 simplified gives 33/2
- So, 20/40 + 80/5 = 33/2
In mixed form: 161/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/80+80/5 20/40+80/10 60/40+80/5 20/40+80/15 20/40+80/25 20/40+80/35