Add 18/80 and 16/18
18/80 + 16/18 is 401/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 18 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
18/80 = 18 × 9/80 × 9 = 162/720 - Likewise, for the 2nd fraction, since 18 × 40 = 720,
16/18 = 16 × 40/18 × 40 = 640/720 - Add the two like fractions:
162/720 + 640/720 = 162 + 640/720 = 802/720 - 802/720 simplified gives 401/360
- So, 18/80 + 16/18 = 401/360
In mixed form: 141/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/80+16/18 18/80+32/18 18/80+16/36 54/80+16/18 18/80+48/18 18/80+16/54 90/80+16/18 18/80+80/18 18/80+16/90