Answers

Add 90/20 and 54/24

1^st number: 4 10/20, 2^nd number: 2 6/24

90/20 + 54/24 is 27/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 24 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 20 × 6 = 120,
   90/20 = 90 × 6/20 × 6 = 540/120
3. Likewise, for the 2nd fraction, since 24 × 5 = 120,
   54/24 = 54 × 5/24 × 5 = 270/120
4. Add the two like fractions:
   540/120 + 270/120 = 540 + 270/120 = 810/120
5. 810/120 simplified gives 27/4
6. So, 90/20 + 54/24 = 27/4
   In mixed form: 63/4

MathStep (Works offline)

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

Related: ⁹⁰/₄₀+⁵⁴/₂₄ ⁹⁰/₂₀+⁵⁴/₄₈ ⁹⁰/₆₀+⁵⁴/₂₄ ⁹⁰/₂₀+⁵⁴/₇₂

Add Fractions Calculator