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Add 1/42 and 16/40

1/42 + 16/40 is 89/210.

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,
    1/42 = 1 × 20/42 × 20 = 20/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    16/40 = 16 × 21/40 × 21 = 336/840
  4. Add the two like fractions:
    20/840 + 336/840 = 20 + 336/840 = 356/840
  5. 356/840 simplified gives 89/210
  6. So, 1/42 + 16/40 = 89/210

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