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Add 21/15 and 63/64

1st number: 1 6/15, 2nd number: 63/64

21/15 + 63/64 is 763/320.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 64 is 960

    Next, find the equivalent fraction of both fractional numbers with denominator 960
  2. For the 1st fraction, since 15 × 64 = 960,
    21/15 = 21 × 64/15 × 64 = 1344/960
  3. Likewise, for the 2nd fraction, since 64 × 15 = 960,
    63/64 = 63 × 15/64 × 15 = 945/960
  4. Add the two like fractions:
    1344/960 + 945/960 = 1344 + 945/960 = 2289/960
  5. 2289/960 simplified gives 763/320
  6. So, 21/15 + 63/64 = 763/320
    In mixed form: 2123/320

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