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Add 18/72 and 7/8

18/72 + 7/8 is 9/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 8 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 72 × 1 = 72,
    18/72 = 18 × 1/72 × 1 = 18/72
  3. Likewise, for the 2nd fraction, since 8 × 9 = 72,
    7/8 = 7 × 9/8 × 9 = 63/72
  4. Add the two like fractions:
    18/72 + 63/72 = 18 + 63/72 = 81/72
  5. 81/72 simplified gives 9/8
  6. So, 18/72 + 7/8 = 9/8
    In mixed form: 11/8

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