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Add 72/64 and 84/80

1st number: 1 8/64, 2nd number: 1 4/80

72/64 + 84/80 is 87/40.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 320
  2. For the 1st fraction, since 64 × 5 = 320,
    72/64 = 72 × 5/64 × 5 = 360/320
  3. Likewise, for the 2nd fraction, since 80 × 4 = 320,
    84/80 = 84 × 4/80 × 4 = 336/320
  4. Add the two like fractions:
    360/320 + 336/320 = 360 + 336/320 = 696/320
  5. 696/320 simplified gives 87/40
  6. So, 72/64 + 84/80 = 87/40
    In mixed form: 27/40

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