Add 54/18 and 2/80
1st number: 3 0/18, 2nd number: 2/80
54/18 + 2/80 is 121/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 18 × 40 = 720,
54/18 = 54 × 40/18 × 40 = 2160/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
2/80 = 2 × 9/80 × 9 = 18/720 - Add the two like fractions:
2160/720 + 18/720 = 2160 + 18/720 = 2178/720 - 2178/720 simplified gives 121/40
- So, 54/18 + 2/80 = 121/40
In mixed form: 31/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/18+4/80 54/36+2/80 54/18+6/80 54/18+10/80 54/90+2/80 54/18+14/80