Answers

Add 54/10 and 15/81

1^st number: 5 4/10, 2^nd number: 15/81

54/10 + 15/81 is 754/135.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 81 is 810
   
   Next, find the equivalent fraction of both fractional numbers with denominator 810
2. For the 1st fraction, since 10 × 81 = 810,
   54/10 = 54 × 81/10 × 81 = 4374/810
3. Likewise, for the 2nd fraction, since 81 × 10 = 810,
   15/81 = 15 × 10/81 × 10 = 150/810
4. Add the two like fractions:
   4374/810 + 150/810 = 4374 + 150/810 = 4524/810
5. 4524/810 simplified gives 754/135
6. So, 54/10 + 15/81 = 754/135
   In mixed form: 579/135

MathStep (Works offline)

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

Related: ⁵⁴/₁₀+³⁰/₈₁ ⁵⁴/₂₀+¹⁵/₈₁ ⁵⁴/₁₀+⁴⁵/₈₁ ⁵⁴/₃₀+¹⁵/₈₁ ⁵⁴/₁₀+⁷⁵/₈₁ ⁵⁴/₅₀+¹⁵/₈₁ ⁵⁴/₇₀+¹⁵/₈₁

Add Fractions Calculator