Answers

Add 90/9 and 35/21

1^st number: 10 0/9, 2^nd number: 1 14/21

90/9 + 35/21 is 35/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 21 is 63
   
   Next, find the equivalent fraction of both fractional numbers with denominator 63
2. For the 1st fraction, since 9 × 7 = 63,
   90/9 = 90 × 7/9 × 7 = 630/63
3. Likewise, for the 2nd fraction, since 21 × 3 = 63,
   35/21 = 35 × 3/21 × 3 = 105/63
4. Add the two like fractions:
   630/63 + 105/63 = 630 + 105/63 = 735/63
5. 735/63 simplified gives 35/3
6. So, 90/9 + 35/21 = 35/3
   In mixed form: 112/3

MathStep (Works offline)

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

Related: ⁹⁰/₉+⁷⁰/₂₁ ⁹⁰/₁₈+³⁵/₂₁ ⁹⁰/₉+³⁵/₄₂ ⁹⁰/₂₇+³⁵/₂₁ ⁹⁰/₉+³⁵/₆₃ ⁹⁰/₄₅+³⁵/₂₁ ⁹⁰/₆₃+³⁵/₂₁

Add Fractions Calculator