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Add 20/25 and 9/42

20/25 + 9/42 is 71/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 42 is 1050

    Next, find the equivalent fraction of both fractional numbers with denominator 1050
  2. For the 1st fraction, since 25 × 42 = 1050,
    20/25 = 20 × 42/25 × 42 = 840/1050
  3. Likewise, for the 2nd fraction, since 42 × 25 = 1050,
    9/42 = 9 × 25/42 × 25 = 225/1050
  4. Add the two like fractions:
    840/1050 + 225/1050 = 840 + 225/1050 = 1065/1050
  5. 1065/1050 simplified gives 71/70
  6. So, 20/25 + 9/42 = 71/70
    In mixed form: 11/70

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