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Add 63/84 and 9/70

63/84 + 9/70 is 123/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 70 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 84 × 5 = 420,
    63/84 = 63 × 5/84 × 5 = 315/420
  3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
    9/70 = 9 × 6/70 × 6 = 54/420
  4. Add the two like fractions:
    315/420 + 54/420 = 315 + 54/420 = 369/420
  5. 369/420 simplified gives 123/140
  6. So, 63/84 + 9/70 = 123/140

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