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Add 40/72 and 16/42

40/72 + 16/42 is 59/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 42 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    40/72 = 40 × 7/72 × 7 = 280/504
  3. Likewise, for the 2nd fraction, since 42 × 12 = 504,
    16/42 = 16 × 12/42 × 12 = 192/504
  4. Add the two like fractions:
    280/504 + 192/504 = 280 + 192/504 = 472/504
  5. 472/504 simplified gives 59/63
  6. So, 40/72 + 16/42 = 59/63

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