Answers

Add 15/5 and 84/54

1^st number: 3 0/5, 2^nd number: 1 30/54

15/5 + 84/54 is 41/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 54 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 5 × 54 = 270,
   15/5 = 15 × 54/5 × 54 = 810/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   84/54 = 84 × 5/54 × 5 = 420/270
4. Add the two like fractions:
   810/270 + 420/270 = 810 + 420/270 = 1230/270
5. 1230/270 simplified gives 41/9
6. So, 15/5 + 84/54 = 41/9
   In mixed form: 45/9

MathStep (Works offline)

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

Related: ³⁰/₅+⁸⁴/₅₄ ¹⁵/₁₀+⁸⁴/₅₄ ⁴⁵/₅+⁸⁴/₅₄ ⁷⁵/₅+⁸⁴/₅₄ ¹⁵/₂₅+⁸⁴/₅₄ ¹⁵/₃₅+⁸⁴/₅₄

Add Fractions Calculator