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Add 7/42 and 36/40

7/42 + 36/40 is 16/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 40 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 42 × 20 = 840,
    7/42 = 7 × 20/42 × 20 = 140/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    36/40 = 36 × 21/40 × 21 = 756/840
  4. Add the two like fractions:
    140/840 + 756/840 = 140 + 756/840 = 896/840
  5. 896/840 simplified gives 16/15
  6. So, 7/42 + 36/40 = 16/15
    In mixed form: 11/15

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