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Add 20/80 and 63/64

20/80 + 63/64 is 79/64.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 64 is 320

    Next, find the equivalent fraction of both fractional numbers with denominator 320
  2. For the 1st fraction, since 80 × 4 = 320,
    20/80 = 20 × 4/80 × 4 = 80/320
  3. Likewise, for the 2nd fraction, since 64 × 5 = 320,
    63/64 = 63 × 5/64 × 5 = 315/320
  4. Add the two like fractions:
    80/320 + 315/320 = 80 + 315/320 = 395/320
  5. 395/320 simplified gives 79/64
  6. So, 20/80 + 63/64 = 79/64
    In mixed form: 115/64

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