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Add 6/42 and 30/40

6/42 + 30/40 is 25/28.

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,
    6/42 = 6 × 20/42 × 20 = 120/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    30/40 = 30 × 21/40 × 21 = 630/840
  4. Add the two like fractions:
    120/840 + 630/840 = 120 + 630/840 = 750/840
  5. 750/840 simplified gives 25/28
  6. So, 6/42 + 30/40 = 25/28

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