Add 18/80 and 8/40
18/80 + 8/40 is 17/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
18/80 = 18 × 1/80 × 1 = 18/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
8/40 = 8 × 2/40 × 2 = 16/80 - Add the two like fractions:
18/80 + 16/80 = 18 + 16/80 = 34/80 - 34/80 simplified gives 17/40
- So, 18/80 + 8/40 = 17/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/80+8/40 18/80+16/40 18/80+8/80 54/80+8/40 18/80+24/40 90/80+8/40 18/80+56/40