Answers

Add 90/4 and 70/63

1^st number: 22 2/4, 2^nd number: 1 7/63

90/4 + 70/63 is 425/18.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 63 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 4 × 63 = 252,
   90/4 = 90 × 63/4 × 63 = 5670/252
3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
   70/63 = 70 × 4/63 × 4 = 280/252
4. Add the two like fractions:
   5670/252 + 280/252 = 5670 + 280/252 = 5950/252
5. 5950/252 simplified gives 425/18
6. So, 90/4 + 70/63 = 425/18
   In mixed form: 2311/18

MathStep (Works offline)

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

Related: ⁹⁰/₈+⁷⁰/₆₃ ⁹⁰/₁₂+⁷⁰/₆₃ ⁹⁰/₂₀+⁷⁰/₆₃ ⁹⁰/₂₈+⁷⁰/₆₃

Add Fractions Calculator