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Add 7/4 and 20/81

1st number: 1 3/4, 2nd number: 20/81

7/4 + 20/81 is 647/324.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 81 is 324

    Next, find the equivalent fraction of both fractional numbers with denominator 324
  2. For the 1st fraction, since 4 × 81 = 324,
    7/4 = 7 × 81/4 × 81 = 567/324
  3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
    20/81 = 20 × 4/81 × 4 = 80/324
  4. Add the two like fractions:
    567/324 + 80/324 = 567 + 80/324 = 647/324
  5. So, 7/4 + 20/81 = 647/324
    In mixed form: 1323/324

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