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Add 63/21 and 36/40

1st number: 3 0/21, 2nd number: 36/40

63/21 + 36/40 is 39/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 40 is 840
  2. For the 1st fraction, since 21 × 40 = 840,
    63/21 = 63 × 40/21 × 40 = 2520/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    36/40 = 36 × 21/40 × 21 = 756/840
  4. Add the two fractions:
    2520/840 + 756/840 = 2520 + 756/840 = 3276/840
  5. 3276/840 simplified gives 39/10
  6. So, 63/21 + 36/40 = 39/10
    In mixed form: 39/10

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