Answers

Add 20/6 and 54/45

1^st number: 3 2/6, 2^nd number: 1 9/45

20/6 + 54/45 is 68/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 6 and 45 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 6 × 15 = 90,
   20/6 = 20 × 15/6 × 15 = 300/90
3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
   54/45 = 54 × 2/45 × 2 = 108/90
4. Add the two like fractions:
   300/90 + 108/90 = 300 + 108/90 = 408/90
5. 408/90 simplified gives 68/15
6. So, 20/6 + 54/45 = 68/15
   In mixed form: 48/15

MathStep (Works offline)

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

Related: ⁴⁰/₆+⁵⁴/₄₅ ²⁰/₁₂+⁵⁴/₄₅ ²⁰/₆+⁵⁴/₉₀ ⁶⁰/₆+⁵⁴/₄₅ ²⁰/₁₈+⁵⁴/₄₅ ²⁰/₃₀+⁵⁴/₄₅ ²⁰/₄₂+⁵⁴/₄₅

Add Fractions Calculator