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Add 21/30 and 56/64

21/30 + 56/64 is 63/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 64 is 960

    Next, find the equivalent fraction of both fractional numbers with denominator 960
  2. For the 1st fraction, since 30 × 32 = 960,
    21/30 = 21 × 32/30 × 32 = 672/960
  3. Likewise, for the 2nd fraction, since 64 × 15 = 960,
    56/64 = 56 × 15/64 × 15 = 840/960
  4. Add the two like fractions:
    672/960 + 840/960 = 672 + 840/960 = 1512/960
  5. 1512/960 simplified gives 63/40
  6. So, 21/30 + 56/64 = 63/40
    In mixed form: 123/40

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