Answers

Add 45/12 and 40/6

1^st number: 3 9/12, 2^nd number: 6 4/6

45/12 + 40/6 is 125/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 6 is 12
   
   Next, find the equivalent fraction of both fractional numbers with denominator 12
2. For the 1st fraction, since 12 × 1 = 12,
   45/12 = 45 × 1/12 × 1 = 45/12
3. Likewise, for the 2nd fraction, since 6 × 2 = 12,
   40/6 = 40 × 2/6 × 2 = 80/12
4. Add the two like fractions:
   45/12 + 80/12 = 45 + 80/12 = 125/12
5. So, 45/12 + 40/6 = 125/12
   In mixed form: 105/12

MathStep (Works offline)

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

Related: ⁹⁰/₁₂+⁴⁰/₆ ⁴⁵/₁₂+⁸⁰/₆ ⁴⁵/₂₄+⁴⁰/₆ ⁴⁵/₁₂+⁴⁰/₁₂ ⁴⁵/₃₆+⁴⁰/₆ ⁴⁵/₁₂+⁴⁰/₁₈ ⁴⁵/₆₀+⁴⁰/₆ ⁴⁵/₁₂+⁴⁰/₃₀ ⁴⁵/₈₄+⁴⁰/₆ ⁴⁵/₁₂+⁴⁰/₄₂

Add Fractions Calculator