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Add 10/45 and 42/63

10/45 + 42/63 is 8/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 63 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 45 × 7 = 315,
    10/45 = 10 × 7/45 × 7 = 70/315
  3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
    42/63 = 42 × 5/63 × 5 = 210/315
  4. Add the two like fractions:
    70/315 + 210/315 = 70 + 210/315 = 280/315
  5. 280/315 simplified gives 8/9
  6. So, 10/45 + 42/63 = 8/9

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