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Add 40/56 and 2/21

40/56 + 2/21 is 17/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 21 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 56 × 3 = 168,
    40/56 = 40 × 3/56 × 3 = 120/168
  3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
    2/21 = 2 × 8/21 × 8 = 16/168
  4. Add the two like fractions:
    120/168 + 16/168 = 120 + 16/168 = 136/168
  5. 136/168 simplified gives 17/21
  6. So, 40/56 + 2/21 = 17/21

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