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Add 20/28 and 63/64

20/28 + 63/64 is 761/448.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 64 is 448

    Next, find the equivalent fraction of both fractional numbers with denominator 448
  2. For the 1st fraction, since 28 × 16 = 448,
    20/28 = 20 × 16/28 × 16 = 320/448
  3. Likewise, for the 2nd fraction, since 64 × 7 = 448,
    63/64 = 63 × 7/64 × 7 = 441/448
  4. Add the two like fractions:
    320/448 + 441/448 = 320 + 441/448 = 761/448
  5. So, 20/28 + 63/64 = 761/448
    In mixed form: 1313/448

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