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Add 72/80 and 42/60

72/80 + 42/60 is 8/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 60 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 80 × 3 = 240,
    72/80 = 72 × 3/80 × 3 = 216/240
  3. Likewise, for the 2nd fraction, since 60 × 4 = 240,
    42/60 = 42 × 4/60 × 4 = 168/240
  4. Add the two like fractions:
    216/240 + 168/240 = 216 + 168/240 = 384/240
  5. 384/240 simplified gives 8/5
  6. So, 72/80 + 42/60 = 8/5
    In mixed form: 13/5

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