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Add 7/12 and 20/72

7/12 + 20/72 is 31/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 72 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 12 × 6 = 72,
    7/12 = 7 × 6/12 × 6 = 42/72
  3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
    20/72 = 20 × 1/72 × 1 = 20/72
  4. Add the two like fractions:
    42/72 + 20/72 = 42 + 20/72 = 62/72
  5. 62/72 simplified gives 31/36
  6. So, 7/12 + 20/72 = 31/36

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