Add 8/80 and 45/9
1st number: 8/80, 2nd number: 5 0/9
8/80 + 45/9 is 51/10.
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,
8/80 = 8 × 9/80 × 9 = 72/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
45/9 = 45 × 80/9 × 80 = 3600/720 - Add the two like fractions:
72/720 + 3600/720 = 72 + 3600/720 = 3672/720 - 3672/720 simplified gives 51/10
- So, 8/80 + 45/9 = 51/10
In mixed form: 51/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/80+45/9 8/80+90/9 8/80+45/18 24/80+45/9 8/80+45/27 40/80+45/9 56/80+45/9 8/80+45/63