Add 8/40 and 6/70
8/40 + 6/70 is 2/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
8/40 = 8 × 7/40 × 7 = 56/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
6/70 = 6 × 4/70 × 4 = 24/280 - Add the two like fractions:
56/280 + 24/280 = 56 + 24/280 = 80/280 - 80/280 simplified gives 2/7
- So, 8/40 + 6/70 = 2/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/40+6/70 8/40+12/70 8/80+6/70 24/40+6/70 8/40+18/70 8/40+30/70 56/40+6/70 8/40+42/70