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Add 4/5 and 42/80

4/5 + 42/80 is 53/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 5 × 16 = 80,
    4/5 = 4 × 16/5 × 16 = 64/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    42/80 = 42 × 1/80 × 1 = 42/80
  4. Add the two like fractions:
    64/80 + 42/80 = 64 + 42/80 = 106/80
  5. 106/80 simplified gives 53/40
  6. So, 4/5 + 42/80 = 53/40
    In mixed form: 113/40

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