Answers

Add 21/12 and 90/96

1^st number: 1 9/12, 2^nd number: 90/96

21/12 + 90/96 is 43/16.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 96 is 96
   
   Next, find the equivalent fraction of both fractional numbers with denominator 96
2. For the 1st fraction, since 12 × 8 = 96,
   21/12 = 21 × 8/12 × 8 = 168/96
3. Likewise, for the 2nd fraction, since 96 × 1 = 96,
   90/96 = 90 × 1/96 × 1 = 90/96
4. Add the two like fractions:
   168/96 + 90/96 = 168 + 90/96 = 258/96
5. 258/96 simplified gives 43/16
6. So, 21/12 + 90/96 = 43/16
   In mixed form: 211/16

MathStep (Works offline)

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

Related: ⁴²/₁₂+⁹⁰/₉₆ ²¹/₂₄+⁹⁰/₉₆ ⁶³/₁₂+⁹⁰/₉₆ ²¹/₃₆+⁹⁰/₉₆ ²¹/₆₀+⁹⁰/₉₆ ²¹/₈₄+⁹⁰/₉₆

Add Fractions Calculator