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Add 21/50 and 3/40

21/50 + 3/40 is 99/200.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 40 is 200

    Next, find the equivalent fraction of both fractional numbers with denominator 200
  2. For the 1st fraction, since 50 × 4 = 200,
    21/50 = 21 × 4/50 × 4 = 84/200
  3. Likewise, for the 2nd fraction, since 40 × 5 = 200,
    3/40 = 3 × 5/40 × 5 = 15/200
  4. Add the two like fractions:
    84/200 + 15/200 = 84 + 15/200 = 99/200
  5. So, 21/50 + 3/40 = 99/200

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