Answers

Add 90/21 and 35/75

1^st number: 4 6/21, 2^nd number: 35/75

90/21 + 35/75 is 499/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 75 is 525
   
   Next, find the equivalent fraction of both fractional numbers with denominator 525
2. For the 1st fraction, since 21 × 25 = 525,
   90/21 = 90 × 25/21 × 25 = 2250/525
3. Likewise, for the 2nd fraction, since 75 × 7 = 525,
   35/75 = 35 × 7/75 × 7 = 245/525
4. Add the two like fractions:
   2250/525 + 245/525 = 2250 + 245/525 = 2495/525
5. 2495/525 simplified gives 499/105
6. So, 90/21 + 35/75 = 499/105
   In mixed form: 479/105

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁹⁰/₂₁+⁷⁰/₇₅ ⁹⁰/₄₂+³⁵/₇₅ ⁹⁰/₆₃+³⁵/₇₅

Add Fractions Calculator