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Add 21/64 and 4/10

21/64 + 4/10 is 233/320.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 64 and 10 is 320

    Next, find the equivalent fraction of both fractional numbers with denominator 320
  2. For the 1st fraction, since 64 × 5 = 320,
    21/64 = 21 × 5/64 × 5 = 105/320
  3. Likewise, for the 2nd fraction, since 10 × 32 = 320,
    4/10 = 4 × 32/10 × 32 = 128/320
  4. Add the two like fractions:
    105/320 + 128/320 = 105 + 128/320 = 233/320
  5. So, 21/64 + 4/10 = 233/320

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