Add 54/80 and 3/20
54/80 + 3/20 is 33/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
54/80 = 54 × 1/80 × 1 = 54/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
3/20 = 3 × 4/20 × 4 = 12/80 - Add the two like fractions:
54/80 + 12/80 = 54 + 12/80 = 66/80 - 66/80 simplified gives 33/40
- So, 54/80 + 3/20 = 33/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/80+6/20 54/80+3/40 54/80+9/20 54/80+3/60 54/80+15/20 54/80+21/20