Add 18/7 and 14/40
1st number: 2 4/7, 2nd number: 14/40
18/7 + 14/40 is 409/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
18/7 = 18 × 40/7 × 40 = 720/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
14/40 = 14 × 7/40 × 7 = 98/280 - Add the two like fractions:
720/280 + 98/280 = 720 + 98/280 = 818/280 - 818/280 simplified gives 409/140
- So, 18/7 + 14/40 = 409/140
In mixed form: 2129/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/7+14/40 18/7+28/40 18/14+14/40 18/7+14/80 54/7+14/40 18/7+42/40 18/21+14/40 90/7+14/40 18/7+70/40 18/35+14/40 18/7+98/40 18/49+14/40