Answers

Add 15/63 and 63/18

1^st number: 15/63, 2^nd number: 3 9/18

15/63 + 63/18 is 157/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 18 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 63 × 2 = 126,
   15/63 = 15 × 2/63 × 2 = 30/126
3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
   63/18 = 63 × 7/18 × 7 = 441/126
4. Add the two like fractions:
   30/126 + 441/126 = 30 + 441/126 = 471/126
5. 471/126 simplified gives 157/42
6. So, 15/63 + 63/18 = 157/42
   In mixed form: 331/42

MathStep (Works offline)

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

Related: ³⁰/₆₃+⁶³/₁₈ ¹⁵/₆₃+⁶³/₃₆ ⁴⁵/₆₃+⁶³/₁₈ ¹⁵/₆₃+⁶³/₅₄ ⁷⁵/₆₃+⁶³/₁₈ ¹⁵/₆₃+⁶³/₉₀

Add Fractions Calculator