Add 40/15 and 27/7
1st number: 2 10/15, 2nd number: 3 6/7
40/15 + 27/7 is 137/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 7 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
40/15 = 40 × 7/15 × 7 = 280/105 - Likewise, for the 2nd fraction, since 7 × 15 = 105,
27/7 = 27 × 15/7 × 15 = 405/105 - Add the two like fractions:
280/105 + 405/105 = 280 + 405/105 = 685/105 - 685/105 simplified gives 137/21
- So, 40/15 + 27/7 = 137/21
In mixed form: 611/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15+27/7 40/15+54/7 40/30+27/7 40/15+27/14 40/15+81/7 40/45+27/7 40/15+27/21 40/75+27/7 40/15+27/35 40/15+27/49