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Add 21/64 and 35/63

21/64 + 35/63 is 509/576.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 64 and 63 is 4032

    Next, find the equivalent fraction of both fractional numbers with denominator 4032
  2. For the 1st fraction, since 64 × 63 = 4032,
    21/64 = 21 × 63/64 × 63 = 1323/4032
  3. Likewise, for the 2nd fraction, since 63 × 64 = 4032,
    35/63 = 35 × 64/63 × 64 = 2240/4032
  4. Add the two like fractions:
    1323/4032 + 2240/4032 = 1323 + 2240/4032 = 3563/4032
  5. 3563/4032 simplified gives 509/576
  6. So, 21/64 + 35/63 = 509/576

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