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Add 7/18 and 21/24

7/18 + 21/24 is 91/72.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 24 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 18 × 4 = 72,
    7/18 = 7 × 4/18 × 4 = 28/72
  3. Likewise, for the 2nd fraction, since 24 × 3 = 72,
    21/24 = 21 × 3/24 × 3 = 63/72
  4. Add the two like fractions:
    28/72 + 63/72 = 28 + 63/72 = 91/72
  5. So, 7/18 + 21/24 = 91/72
    In mixed form: 119/72

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