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Add 42/8 and 80/5

1st number: 5 2/8, 2nd number: 16 0/5

42/8 + 80/5 is 85/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 5 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 8 × 5 = 40,
    42/8 = 42 × 5/8 × 5 = 210/40
  3. Likewise, for the 2nd fraction, since 5 × 8 = 40,
    80/5 = 80 × 8/5 × 8 = 640/40
  4. Add the two like fractions:
    210/40 + 640/40 = 210 + 640/40 = 850/40
  5. 850/40 simplified gives 85/4
  6. So, 42/8 + 80/5 = 85/4
    In mixed form: 211/4

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