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Add 21/4 and 20/18

1st number: 5 1/4, 2nd number: 1 2/18

21/4 + 20/18 is 229/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 18 is 36
  2. For the 1st fraction, since 4 × 9 = 36,
    21/4 = 21 × 9/4 × 9 = 189/36
  3. Likewise, for the 2nd fraction, since 18 × 2 = 36,
    20/18 = 20 × 2/18 × 2 = 40/36
  4. Add the two fractions:
    189/36 + 40/36 = 189 + 40/36 = 229/36
  5. In mixed form: 613/36

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