Add 54/80 and 3/10
54/80 + 3/10 is 39/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 10 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 10 × 8 = 80,
3/10 = 3 × 8/10 × 8 = 24/80 - Add the two like fractions:
54/80 + 24/80 = 54 + 24/80 = 78/80 - 78/80 simplified gives 39/40
- So, 54/80 + 3/10 = 39/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/80+6/10 54/80+3/20 54/80+9/10 54/80+3/30 54/80+15/10 54/80+3/50 54/80+21/10 54/80+3/70