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Add 3/20 and 63/84

3/20 + 63/84 is 9/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 84 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 20 × 21 = 420,
    3/20 = 3 × 21/20 × 21 = 63/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    63/84 = 63 × 5/84 × 5 = 315/420
  4. Add the two like fractions:
    63/420 + 315/420 = 63 + 315/420 = 378/420
  5. 378/420 simplified gives 9/10
  6. So, 3/20 + 63/84 = 9/10

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