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Add 21/5 and 18/64

1st number: 4 1/5, 2nd number: 18/64

21/5 + 18/64 is 717/160.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 64 is 320

    Next, find the equivalent fraction of both fractional numbers with denominator 320
  2. For the 1st fraction, since 5 × 64 = 320,
    21/5 = 21 × 64/5 × 64 = 1344/320
  3. Likewise, for the 2nd fraction, since 64 × 5 = 320,
    18/64 = 18 × 5/64 × 5 = 90/320
  4. Add the two like fractions:
    1344/320 + 90/320 = 1344 + 90/320 = 1434/320
  5. 1434/320 simplified gives 717/160
  6. So, 21/5 + 18/64 = 717/160
    In mixed form: 477/160

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