Add 80/20 and 45/80
1st number: 4 0/20, 2nd number: 45/80
80/20 + 45/80 is 73/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
80/20 = 80 × 4/20 × 4 = 320/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
45/80 = 45 × 1/80 × 1 = 45/80 - Add the two like fractions:
320/80 + 45/80 = 320 + 45/80 = 365/80 - 365/80 simplified gives 73/16
- So, 80/20 + 45/80 = 73/16
In mixed form: 49/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20+90/80 80/40+45/80 80/60+45/80