Add 15/7 and 6/40
1st number: 2 1/7, 2nd number: 6/40
15/7 + 6/40 is 321/140.
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,
15/7 = 15 × 40/7 × 40 = 600/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
6/40 = 6 × 7/40 × 7 = 42/280 - Add the two like fractions:
600/280 + 42/280 = 600 + 42/280 = 642/280 - 642/280 simplified gives 321/140
- So, 15/7 + 6/40 = 321/140
In mixed form: 241/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/7+6/40 15/7+12/40 15/14+6/40 15/7+6/80 45/7+6/40 15/7+18/40 15/21+6/40 75/7+6/40 15/7+30/40 15/35+6/40 15/7+42/40 15/49+6/40