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Add 18/21 and 45/50

18/21 + 45/50 is 123/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 50 is 1050
  2. For the 1st fraction, since 21 × 50 = 1050,
    18/21 = 18 × 50/21 × 50 = 900/1050
  3. Likewise, for the 2nd fraction, since 50 × 21 = 1050,
    45/50 = 45 × 21/50 × 21 = 945/1050
  4. Add the two fractions:
    900/1050 + 945/1050 = 900 + 945/1050 = 1845/1050
  5. After reducing the fraction, the answer is 123/70
  6. In mixed form: 153/70

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