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Add 20/50 and 45/84

20/50 + 45/84 is 131/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 84 is 2100

    Next, find the equivalent fraction of both fractional numbers with denominator 2100
  2. For the 1st fraction, since 50 × 42 = 2100,
    20/50 = 20 × 42/50 × 42 = 840/2100
  3. Likewise, for the 2nd fraction, since 84 × 25 = 2100,
    45/84 = 45 × 25/84 × 25 = 1125/2100
  4. Add the two like fractions:
    840/2100 + 1125/2100 = 840 + 1125/2100 = 1965/2100
  5. 1965/2100 simplified gives 131/140
  6. So, 20/50 + 45/84 = 131/140

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