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Add 5/15 and 15/63

5/15 + 15/63 is 4/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 63 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 15 × 21 = 315,
    5/15 = 5 × 21/15 × 21 = 105/315
  3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
    15/63 = 15 × 5/63 × 5 = 75/315
  4. Add the two like fractions:
    105/315 + 75/315 = 105 + 75/315 = 180/315
  5. 180/315 simplified gives 4/7
  6. So, 5/15 + 15/63 = 4/7

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