Answers

Add 42/18 and 48/81

1^st number: 2 6/18, 2^nd number: 48/81

42/18 + 48/81 is 79/27.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 81 is 162
   
   Next, find the equivalent fraction of both fractional numbers with denominator 162
2. For the 1st fraction, since 18 × 9 = 162,
   42/18 = 42 × 9/18 × 9 = 378/162
3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
   48/81 = 48 × 2/81 × 2 = 96/162
4. Add the two like fractions:
   378/162 + 96/162 = 378 + 96/162 = 474/162
5. 474/162 simplified gives 79/27
6. So, 42/18 + 48/81 = 79/27
   In mixed form: 225/27

MathStep (Works offline)

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

Related: ⁸⁴/₁₈+⁴⁸/₈₁ ⁴²/₁₈+⁹⁶/₈₁ ⁴²/₃₆+⁴⁸/₈₁ ⁴²/₅₄+⁴⁸/₈₁ ⁴²/₉₀+⁴⁸/₈₁

Add Fractions Calculator