Answers

Add 72/36 and 45/18

1^st number: 2 0/36, 2^nd number: 2 9/18

72/36 + 45/18 is 9/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 18 is 36
   
   Next, find the equivalent fraction of both fractional numbers with denominator 36
2. For the 1st fraction, since 36 × 1 = 36,
   72/36 = 72 × 1/36 × 1 = 72/36
3. Likewise, for the 2nd fraction, since 18 × 2 = 36,
   45/18 = 45 × 2/18 × 2 = 90/36
4. Add the two like fractions:
   72/36 + 90/36 = 72 + 90/36 = 162/36
5. 162/36 simplified gives 9/2
6. So, 72/36 + 45/18 = 9/2
   In mixed form: 41/2

MathStep (Works offline)

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

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

Add Fractions Calculator