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Add 20/90 and 21/6

1st number: 20/90, 2nd number: 3 3/6

20/90 + 21/6 is 67/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 6 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 90 × 1 = 90,
    20/90 = 20 × 1/90 × 1 = 20/90
  3. Likewise, for the 2nd fraction, since 6 × 15 = 90,
    21/6 = 21 × 15/6 × 15 = 315/90
  4. Add the two like fractions:
    20/90 + 315/90 = 20 + 315/90 = 335/90
  5. 335/90 simplified gives 67/18
  6. So, 20/90 + 21/6 = 67/18
    In mixed form: 313/18

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