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Add 72/4 and 20/18

1st number: 18 0/4, 2nd number: 1 2/18

72/4 + 20/18 is 172/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 18 is 36

    Next, find the equivalent fraction of both fractional numbers with denominator 36
  2. For the 1st fraction, since 4 × 9 = 36,
    72/4 = 72 × 9/4 × 9 = 648/36
  3. Likewise, for the 2nd fraction, since 18 × 2 = 36,
    20/18 = 20 × 2/18 × 2 = 40/36
  4. Add the two like fractions:
    648/36 + 40/36 = 648 + 40/36 = 688/36
  5. 688/36 simplified gives 172/9
  6. So, 72/4 + 20/18 = 172/9
    In mixed form: 191/9

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