Answers

Add 15/4 and 20/54

1^st number: 3 3/4, 2^nd number: 20/54

15/4 + 20/54 is 445/108.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 54 is 108
   
   Next, find the equivalent fraction of both fractional numbers with denominator 108
2. For the 1st fraction, since 4 × 27 = 108,
   15/4 = 15 × 27/4 × 27 = 405/108
3. Likewise, for the 2nd fraction, since 54 × 2 = 108,
   20/54 = 20 × 2/54 × 2 = 40/108
4. Add the two like fractions:
   405/108 + 40/108 = 405 + 40/108 = 445/108
5. So, 15/4 + 20/54 = 445/108
   In mixed form: 413/108

MathStep (Works offline)

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

Related: ³⁰/₄+²⁰/₅₄ ¹⁵/₄+⁴⁰/₅₄ ¹⁵/₈+²⁰/₅₄ ⁴⁵/₄+²⁰/₅₄ ¹⁵/₄+⁶⁰/₅₄ ¹⁵/₁₂+²⁰/₅₄ ⁷⁵/₄+²⁰/₅₄ ¹⁵/₂₀+²⁰/₅₄ ¹⁵/₂₈+²⁰/₅₄

Add Fractions Calculator