Add 35/25 and 54/21
1st number: 1 10/25, 2nd number: 2 12/21
35/25 + 54/21 is 139/35.
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,
54/21 = 54 × 25/21 × 25 = 1350/525 - Add the two like fractions:
735/525 + 1350/525 = 735 + 1350/525 = 2085/525 - 2085/525 simplified gives 139/35
- So, 35/25 + 54/21 = 139/35
In mixed form: 334/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/25+54/21 35/50+54/21 35/25+54/42 35/75+54/21 35/25+54/63