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Add 42/63 and 18/45

42/63 + 18/45 is 16/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 45 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 45 × 7 = 315,
    18/45 = 18 × 7/45 × 7 = 126/315
  4. Add the two like fractions:
    210/315 + 126/315 = 210 + 126/315 = 336/315
  5. 336/315 simplified gives 16/15
  6. So, 42/63 + 18/45 = 16/15
    In mixed form: 11/15

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