Add 54/80 and 3/45
54/80 + 3/45 is 89/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
54/80 = 54 × 9/80 × 9 = 486/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
3/45 = 3 × 16/45 × 16 = 48/720 - Add the two like fractions:
486/720 + 48/720 = 486 + 48/720 = 534/720 - 534/720 simplified gives 89/120
- So, 54/80 + 3/45 = 89/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/80+6/45 54/80+3/90 54/80+9/45 54/80+15/45 54/80+21/45