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Add 18/21 and 42/4

1st number: 18/21, 2nd number: 10 2/4

18/21 + 42/4 is 159/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 4 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 21 × 4 = 84,
    18/21 = 18 × 4/21 × 4 = 72/84
  3. Likewise, for the 2nd fraction, since 4 × 21 = 84,
    42/4 = 42 × 21/4 × 21 = 882/84
  4. Add the two like fractions:
    72/84 + 882/84 = 72 + 882/84 = 954/84
  5. 954/84 simplified gives 159/14
  6. So, 18/21 + 42/4 = 159/14
    In mixed form: 115/14

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