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Add 42/63 and 7/15

42/63 + 7/15 is 17/15.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 63 × 5 = 315,
    42/63 = 42 × 5/63 × 5 = 210/315
  3. Likewise, for the 2nd fraction, since 15 × 21 = 315,
    7/15 = 7 × 21/15 × 21 = 147/315
  4. Add the two like fractions:
    210/315 + 147/315 = 210 + 147/315 = 357/315
  5. 357/315 simplified gives 17/15
  6. So, 42/63 + 7/15 = 17/15
    In mixed form: 12/15

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