Add 4/20 and 9/80
4/20 + 9/80 is 5/16.
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,
4/20 = 4 × 4/20 × 4 = 16/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
9/80 = 9 × 1/80 × 1 = 9/80 - Add the two like fractions:
16/80 + 9/80 = 16 + 9/80 = 25/80 - 25/80 simplified gives 5/16
- So, 4/20 + 9/80 = 5/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/20+9/80 4/20+18/80 4/40+9/80 12/20+9/80 4/20+27/80 4/60+9/80 4/20+45/80 28/20+9/80 4/20+63/80