Answers

Add 90/12 and 45/64

1^st number: 7 6/12, 2^nd number: 45/64

90/12 + 45/64 is 525/64.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 64 is 192
   
   Next, find the equivalent fraction of both fractional numbers with denominator 192
2. For the 1st fraction, since 12 × 16 = 192,
   90/12 = 90 × 16/12 × 16 = 1440/192
3. Likewise, for the 2nd fraction, since 64 × 3 = 192,
   45/64 = 45 × 3/64 × 3 = 135/192
4. Add the two like fractions:
   1440/192 + 135/192 = 1440 + 135/192 = 1575/192
5. 1575/192 simplified gives 525/64
6. So, 90/12 + 45/64 = 525/64
   In mixed form: 813/64

MathStep (Works offline)

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

Related: ⁹⁰/₁₂+⁹⁰/₆₄ ⁹⁰/₂₄+⁴⁵/₆₄ ⁹⁰/₃₆+⁴⁵/₆₄ ⁹⁰/₆₀+⁴⁵/₆₄ ⁹⁰/₈₄+⁴⁵/₆₄

Add Fractions Calculator