Add 54/80 and 25/9
1st number: 54/80, 2nd number: 2 7/9
54/80 + 25/9 is 1243/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 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 9 × 80 = 720,
25/9 = 25 × 80/9 × 80 = 2000/720 - Add the two like fractions:
486/720 + 2000/720 = 486 + 2000/720 = 2486/720 - 2486/720 simplified gives 1243/360
- So, 54/80 + 25/9 = 1243/360
In mixed form: 3163/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/80+50/9 54/80+25/18 54/80+75/9 54/80+25/27 54/80+25/45 54/80+25/63