Add 20/80 and 54/9
1st number: 20/80, 2nd number: 6 0/9
20/80 + 54/9 is 25/4.
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,
20/80 = 20 × 9/80 × 9 = 180/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
54/9 = 54 × 80/9 × 80 = 4320/720 - Add the two like fractions:
180/720 + 4320/720 = 180 + 4320/720 = 4500/720 - 4500/720 simplified gives 25/4
- So, 20/80 + 54/9 = 25/4
In mixed form: 61/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/80+54/9 20/80+54/18 60/80+54/9 20/80+54/27 20/80+54/45 20/80+54/63