Add 80/16 and 40/90
1st number: 5 0/16, 2nd number: 40/90
80/16 + 40/90 is 49/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
80/16 = 80 × 45/16 × 45 = 3600/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
40/90 = 40 × 8/90 × 8 = 320/720 - Add the two like fractions:
3600/720 + 320/720 = 3600 + 320/720 = 3920/720 - 3920/720 simplified gives 49/9
- So, 80/16 + 40/90 = 49/9
In mixed form: 54/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/16+80/90 80/32+40/90 80/48+40/90