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Add 15/42 and 20/50

15/42 + 20/50 is 53/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 50 is 1050

    Next, find the equivalent fraction of both fractional numbers with denominator 1050
  2. For the 1st fraction, since 42 × 25 = 1050,
    15/42 = 15 × 25/42 × 25 = 375/1050
  3. Likewise, for the 2nd fraction, since 50 × 21 = 1050,
    20/50 = 20 × 21/50 × 21 = 420/1050
  4. Add the two like fractions:
    375/1050 + 420/1050 = 375 + 420/1050 = 795/1050
  5. 795/1050 simplified gives 53/70
  6. So, 15/42 + 20/50 = 53/70

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