Answers

Add 28/90 and 18/6

1^st number: 28/90, 2^nd number: 3 0/6

28/90 + 18/6 is 149/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 6 is 90
2. For the 1st fraction, since 90 × 1 = 90,
   28/90 = 28 × 1/90 × 1 = 28/90
3. Likewise, for the 2nd fraction, since 6 × 15 = 90,
   18/6 = 18 × 15/6 × 15 = 270/90
4. Add the two fractions:
   28/90 + 270/90 = 28 + 270/90 = 298/90
5. After reducing the fraction, the answer is 149/45
6. In mixed form: 314/45

MathStep (Works offline)

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

Related: ⁵⁶/₉₀+¹⁸/₆ ²⁸/₉₀+³⁶/₆ ²⁸/₉₀+¹⁸/₁₂ ⁸⁴/₉₀+¹⁸/₆ ²⁸/₉₀+⁵⁴/₆ ²⁸/₉₀+⁹⁰/₆ ²⁸/₉₀+¹⁸/₃₀ ²⁸/₉₀+¹⁸/₄₂

Add Fractions Calculator