Add 8/40 and 49/70
8/40 + 49/70 is 9/10.
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,
49/70 = 49 × 4/70 × 4 = 196/280 - Add the two like fractions:
56/280 + 196/280 = 56 + 196/280 = 252/280 - 252/280 simplified gives 9/10
- So, 8/40 + 49/70 = 9/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/40+49/70 8/40+98/70 8/80+49/70 24/40+49/70 56/40+49/70