Answers

Add 84/18 and 45/36

1^st number: 4 12/18, 2^nd number: 1 9/36

84/18 + 45/36 is 71/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 36 is 36
   
   Next, find the equivalent fraction of both fractional numbers with denominator 36
2. For the 1st fraction, since 18 × 2 = 36,
   84/18 = 84 × 2/18 × 2 = 168/36
3. Likewise, for the 2nd fraction, since 36 × 1 = 36,
   45/36 = 45 × 1/36 × 1 = 45/36
4. Add the two like fractions:
   168/36 + 45/36 = 168 + 45/36 = 213/36
5. 213/36 simplified gives 71/12
6. So, 84/18 + 45/36 = 71/12
   In mixed form: 511/12

MathStep (Works offline)

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

Related: ⁸⁴/₁₈+⁹⁰/₃₆ ⁸⁴/₃₆+⁴⁵/₃₆ ⁸⁴/₁₈+⁴⁵/₇₂ ⁸⁴/₅₄+⁴⁵/₃₆ ⁸⁴/₉₀+⁴⁵/₃₆

Add Fractions Calculator