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Add 63/18 and 35/20

1st number: 3 9/18, 2nd number: 1 15/20

63/18 + 35/20 is 21/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 18 × 10 = 180,
    63/18 = 63 × 10/18 × 10 = 630/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    35/20 = 35 × 9/20 × 9 = 315/180
  4. Add the two like fractions:
    630/180 + 315/180 = 630 + 315/180 = 945/180
  5. 945/180 simplified gives 21/4
  6. So, 63/18 + 35/20 = 21/4
    In mixed form: 51/4

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