Add 40/21 and 9/35
1st number: 1 19/21, 2nd number: 9/35
40/21 + 9/35 is 227/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
40/21 = 40 × 5/21 × 5 = 200/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
9/35 = 9 × 3/35 × 3 = 27/105 - Add the two like fractions:
200/105 + 27/105 = 200 + 27/105 = 227/105 - So, 40/21 + 9/35 = 227/105
In mixed form: 217/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/21+9/35 40/21+18/35 40/42+9/35 40/21+9/70 40/21+27/35 40/63+9/35 40/21+45/35 40/21+63/35