Add 2/40 and 40/70
2/40 + 40/70 is 87/140.
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,
40/70 = 40 × 4/70 × 4 = 160/280 - Add the two like fractions:
14/280 + 160/280 = 14 + 160/280 = 174/280 - 174/280 simplified gives 87/140
- So, 2/40 + 40/70 = 87/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/40+40/70 2/40+80/70 2/80+40/70 6/40+40/70 10/40+40/70 14/40+40/70