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Add 21/42 and 4/64

21/42 + 4/64 is 9/16.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 64 is 1344

    Next, find the equivalent fraction of both fractional numbers with denominator 1344
  2. For the 1st fraction, since 42 × 32 = 1344,
    21/42 = 21 × 32/42 × 32 = 672/1344
  3. Likewise, for the 2nd fraction, since 64 × 21 = 1344,
    4/64 = 4 × 21/64 × 21 = 84/1344
  4. Add the two like fractions:
    672/1344 + 84/1344 = 672 + 84/1344 = 756/1344
  5. 756/1344 simplified gives 9/16
  6. So, 21/42 + 4/64 = 9/16

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