Answers

Add 42/4 and 5/81

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

42/4 + 5/81 is 1711/162.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 81 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 4 × 81 = 324,
   42/4 = 42 × 81/4 × 81 = 3402/324
3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
   5/81 = 5 × 4/81 × 4 = 20/324
4. Add the two like fractions:
   3402/324 + 20/324 = 3402 + 20/324 = 3422/324
5. 3422/324 simplified gives 1711/162
6. So, 42/4 + 5/81 = 1711/162
   In mixed form: 1091/162

MathStep (Works offline)

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

Related: ⁸⁴/₄+⁵/₈₁ ⁴²/₄+¹⁰/₈₁ ⁴²/₈+⁵/₈₁ ⁴²/₄+¹⁵/₈₁ ⁴²/₁₂+⁵/₈₁ ⁴²/₄+²⁵/₈₁ ⁴²/₂₀+⁵/₈₁ ⁴²/₄+³⁵/₈₁ ⁴²/₂₈+⁵/₈₁

Add Fractions Calculator