Add 10/21 and 80/35
1st number: 10/21, 2nd number: 2 10/35
10/21 + 80/35 is 58/21.
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,
10/21 = 10 × 5/21 × 5 = 50/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
80/35 = 80 × 3/35 × 3 = 240/105 - Add the two like fractions:
50/105 + 240/105 = 50 + 240/105 = 290/105 - 290/105 simplified gives 58/21
- So, 10/21 + 80/35 = 58/21
In mixed form: 216/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/21+80/35 10/42+80/35 10/21+80/70 30/21+80/35 10/63+80/35 50/21+80/35 70/21+80/35