Answers

Add 54/18 and 18/63

1^st number: 3 0/18, 2^nd number: 18/63

54/18 + 18/63 is 23/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 63 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 18 × 7 = 126,
   54/18 = 54 × 7/18 × 7 = 378/126
3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
   18/63 = 18 × 2/63 × 2 = 36/126
4. Add the two like fractions:
   378/126 + 36/126 = 378 + 36/126 = 414/126
5. 414/126 simplified gives 23/7
6. So, 54/18 + 18/63 = 23/7
   In mixed form: 32/7

MathStep (Works offline)

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

Related: ⁵⁴/₁₈+³⁶/₆₃ ⁵⁴/₃₆+¹⁸/₆₃ ⁵⁴/₁₈+⁵⁴/₆₃ ⁵⁴/₁₈+⁹⁰/₆₃ ⁵⁴/₉₀+¹⁸/₆₃

Add Fractions Calculator