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Add 84/80 and 42/12

1st number: 1 4/80, 2nd number: 3 6/12

84/80 + 42/12 is 91/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 12 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 80 × 3 = 240,
    84/80 = 84 × 3/80 × 3 = 252/240
  3. Likewise, for the 2nd fraction, since 12 × 20 = 240,
    42/12 = 42 × 20/12 × 20 = 840/240
  4. Add the two like fractions:
    252/240 + 840/240 = 252 + 840/240 = 1092/240
  5. 1092/240 simplified gives 91/20
  6. So, 84/80 + 42/12 = 91/20
    In mixed form: 411/20

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