Add 2/40 and 80/70
1st number: 2/40, 2nd number: 1 10/70
2/40 + 80/70 is 167/140.
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,
2/40 = 2 × 7/40 × 7 = 14/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
80/70 = 80 × 4/70 × 4 = 320/280 - Add the two like fractions:
14/280 + 320/280 = 14 + 320/280 = 334/280 - 334/280 simplified gives 167/140
- So, 2/40 + 80/70 = 167/140
In mixed form: 127/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/40+80/70 2/80+80/70 6/40+80/70 10/40+80/70 14/40+80/70