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Add 7/42 and 10/40

7/42 + 10/40 is 5/12.

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,
    10/40 = 10 × 21/40 × 21 = 210/840
  4. Add the two like fractions:
    140/840 + 210/840 = 140 + 210/840 = 350/840
  5. 350/840 simplified gives 5/12
  6. So, 7/42 + 10/40 = 5/12

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