Add 10/35 and 40/21
1st number: 10/35, 2nd number: 1 19/21
10/35 + 40/21 is 46/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 35 × 3 = 105,
10/35 = 10 × 3/35 × 3 = 30/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
40/21 = 40 × 5/21 × 5 = 200/105 - Add the two like fractions:
30/105 + 200/105 = 30 + 200/105 = 230/105 - 230/105 simplified gives 46/21
- So, 10/35 + 40/21 = 46/21
In mixed form: 24/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/35+40/21 10/35+80/21 10/70+40/21 10/35+40/42 30/35+40/21 10/35+40/63 50/35+40/21 70/35+40/21