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Add 40/8 and 20/80

1st number: 5 0/8, 2nd number: 20/80

40/8 + 20/80 is 21/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 8 × 10 = 80,
    40/8 = 40 × 10/8 × 10 = 400/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    20/80 = 20 × 1/80 × 1 = 20/80
  4. Add the two like fractions:
    400/80 + 20/80 = 400 + 20/80 = 420/80
  5. 420/80 simplified gives 21/4
  6. So, 40/8 + 20/80 = 21/4
    In mixed form: 51/4

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