Add 80/45 and 40/16
1st number: 1 35/45, 2nd number: 2 8/16
80/45 + 40/16 is 77/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
80/45 = 80 × 16/45 × 16 = 1280/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
40/16 = 40 × 45/16 × 45 = 1800/720 - Add the two like fractions:
1280/720 + 1800/720 = 1280 + 1800/720 = 3080/720 - 3080/720 simplified gives 77/18
- So, 80/45 + 40/16 = 77/18
In mixed form: 45/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/45+80/16 80/90+40/16 80/45+40/32 80/45+40/48 80/45+40/80