Add 8/40 and 8/80
8/40 + 8/80 is 3/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 40 × 2 = 80,
8/40 = 8 × 2/40 × 2 = 16/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
8/80 = 8 × 1/80 × 1 = 8/80 - Add the two like fractions:
16/80 + 8/80 = 16 + 8/80 = 24/80 - 24/80 simplified gives 3/10
- So, 8/40 + 8/80 = 3/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/40+8/80 8/40+16/80 8/80+8/80 24/40+8/80 8/40+24/80 8/40+40/80 56/40+8/80 8/40+56/80