Add 70/21 and 3/25
1st number: 3 7/21, 2nd number: 3/25
70/21 + 3/25 is 259/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 25 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 21 × 25 = 525,
70/21 = 70 × 25/21 × 25 = 1750/525 - Likewise, for the 2nd fraction, since 25 × 21 = 525,
3/25 = 3 × 21/25 × 21 = 63/525 - Add the two like fractions:
1750/525 + 63/525 = 1750 + 63/525 = 1813/525 - 1813/525 simplified gives 259/75
- So, 70/21 + 3/25 = 259/75
In mixed form: 334/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/21+6/25 70/42+3/25 70/21+3/50 70/21+9/25 70/63+3/25 70/21+3/75 70/21+15/25 70/21+21/25