Add 54/18 and 10/80
1st number: 3 0/18, 2nd number: 10/80
54/18 + 10/80 is 25/8.
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,
10/80 = 10 × 9/80 × 9 = 90/720 - Add the two like fractions:
2160/720 + 90/720 = 2160 + 90/720 = 2250/720 - 2250/720 simplified gives 25/8
- So, 54/18 + 10/80 = 25/8
In mixed form: 31/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/18+20/80 54/36+10/80 54/18+30/80 54/18+50/80 54/90+10/80 54/18+70/80