Answers

Add 28/30 and 45/12

1^st number: 28/30, 2^nd number: 3 9/12

28/30 + 45/12 is 281/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 12 is 60
2. For the 1st fraction, since 30 × 2 = 60,
   28/30 = 28 × 2/30 × 2 = 56/60
3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
   45/12 = 45 × 5/12 × 5 = 225/60
4. Add the two fractions:
   56/60 + 225/60 = 56 + 225/60 = 281/60
5. So, 28/30 + 45/12 = 281/60
   In mixed form: 441/60

MathStep (Works offline)

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

Related: ⁵⁶/₃₀+⁴⁵/₁₂ ²⁸/₃₀+⁹⁰/₁₂ ²⁸/₆₀+⁴⁵/₁₂ ²⁸/₃₀+⁴⁵/₂₄ ⁸⁴/₃₀+⁴⁵/₁₂ ²⁸/₉₀+⁴⁵/₁₂ ²⁸/₃₀+⁴⁵/₃₆ ²⁸/₃₀+⁴⁵/₆₀ ²⁸/₃₀+⁴⁵/₈₄

Add Fractions Calculator