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Add 48/18 and 21/12

1st number: 2 12/18, 2nd number: 1 9/12

48/18 + 21/12 is 53/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 12 is 36

    Next, find the equivalent fraction of both fractional numbers with denominator 36
  2. For the 1st fraction, since 18 × 2 = 36,
    48/18 = 48 × 2/18 × 2 = 96/36
  3. Likewise, for the 2nd fraction, since 12 × 3 = 36,
    21/12 = 21 × 3/12 × 3 = 63/36
  4. Add the two like fractions:
    96/36 + 63/36 = 96 + 63/36 = 159/36
  5. 159/36 simplified gives 53/12
  6. So, 48/18 + 21/12 = 53/12
    In mixed form: 45/12

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