Add 8/40 and 8/12
8/40 + 8/12 is 13/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
8/40 = 8 × 3/40 × 3 = 24/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
8/12 = 8 × 10/12 × 10 = 80/120 - Add the two like fractions:
24/120 + 80/120 = 24 + 80/120 = 104/120 - 104/120 simplified gives 13/15
- So, 8/40 + 8/12 = 13/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/40+8/12 8/40+16/12 8/80+8/12 8/40+8/24 24/40+8/12 8/40+24/12 8/40+8/36 8/40+40/12 8/40+8/60 56/40+8/12 8/40+56/12 8/40+8/84