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Add 36/42 and 20/40

36/42 + 20/40 is 19/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 40 is 840
  2. For the 1st fraction, since 42 × 20 = 840,
    36/42 = 36 × 20/42 × 20 = 720/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    20/40 = 20 × 21/40 × 21 = 420/840
  4. Add the two fractions:
    720/840 + 420/840 = 720 + 420/840 = 1140/840
  5. 1140/840 simplified gives 19/14
  6. So, 36/42 + 20/40 = 19/14
    In mixed form: 15/14

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