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Add 21/40 and 63/3

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

21/40 + 63/3 is 861/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 3 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 40 × 3 = 120,
    21/40 = 21 × 3/40 × 3 = 63/120
  3. Likewise, for the 2nd fraction, since 3 × 40 = 120,
    63/3 = 63 × 40/3 × 40 = 2520/120
  4. Add the two like fractions:
    63/120 + 2520/120 = 63 + 2520/120 = 2583/120
  5. 2583/120 simplified gives 861/40
  6. So, 21/40 + 63/3 = 861/40
    In mixed form: 2121/40

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