Answers

Add 63/5 and 84/63

1^st number: 12 3/5, 2^nd number: 1 21/63

63/5 + 84/63 is 209/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 63 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 5 × 63 = 315,
   63/5 = 63 × 63/5 × 63 = 3969/315
3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
   84/63 = 84 × 5/63 × 5 = 420/315
4. Add the two like fractions:
   3969/315 + 420/315 = 3969 + 420/315 = 4389/315
5. 4389/315 simplified gives 209/15
6. So, 63/5 + 84/63 = 209/15
   In mixed form: 1314/15

MathStep (Works offline)

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

Related: ⁶³/₁₀+⁸⁴/₆₃ ⁶³/₁₅+⁸⁴/₆₃ ⁶³/₂₅+⁸⁴/₆₃ ⁶³/₃₅+⁸⁴/₆₃

Add Fractions Calculator