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Add 7/15 and 18/63

7/15 + 18/63 is 79/105.

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,
    7/15 = 7 × 21/15 × 21 = 147/315
  3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
    18/63 = 18 × 5/63 × 5 = 90/315
  4. Add the two like fractions:
    147/315 + 90/315 = 147 + 90/315 = 237/315
  5. 237/315 simplified gives 79/105
  6. So, 7/15 + 18/63 = 79/105

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