Add 35/25 and 7/21
1st number: 1 10/25, 2nd number: 7/21
35/25 + 7/21 is 26/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 25 × 21 = 525,
35/25 = 35 × 21/25 × 21 = 735/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
7/21 = 7 × 25/21 × 25 = 175/525 - Add the two like fractions:
735/525 + 175/525 = 735 + 175/525 = 910/525 - 910/525 simplified gives 26/15
- So, 35/25 + 7/21 = 26/15
In mixed form: 111/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/25+7/21 35/25+14/21 35/50+7/21 35/25+7/42 35/75+7/21 35/25+7/63 35/25+35/21 35/25+49/21