Add 80/8 and 40/70
1st number: 10 0/8, 2nd number: 40/70
80/8 + 40/70 is 74/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
80/8 = 80 × 35/8 × 35 = 2800/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
40/70 = 40 × 4/70 × 4 = 160/280 - Add the two like fractions:
2800/280 + 160/280 = 2800 + 160/280 = 2960/280 - 2960/280 simplified gives 74/7
- So, 80/8 + 40/70 = 74/7
In mixed form: 104/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8+80/70 80/16+40/70 80/24+40/70 80/40+40/70 80/56+40/70