Answers

Add 90/8 and 45/63

1^st number: 11 2/8, 2^nd number: 45/63

90/8 + 45/63 is 335/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 63 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 8 × 63 = 504,
   90/8 = 90 × 63/8 × 63 = 5670/504
3. Likewise, for the 2nd fraction, since 63 × 8 = 504,
   45/63 = 45 × 8/63 × 8 = 360/504
4. Add the two like fractions:
   5670/504 + 360/504 = 5670 + 360/504 = 6030/504
5. 6030/504 simplified gives 335/28
6. So, 90/8 + 45/63 = 335/28
   In mixed form: 1127/28

MathStep (Works offline)

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

Related: ⁹⁰/₈+⁹⁰/₆₃ ⁹⁰/₁₆+⁴⁵/₆₃ ⁹⁰/₂₄+⁴⁵/₆₃ ⁹⁰/₄₀+⁴⁵/₆₃ ⁹⁰/₅₆+⁴⁵/₆₃

Add Fractions Calculator