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Add 2/21 and 40/60

2/21 + 40/60 is 16/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 60 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 21 × 20 = 420,
    2/21 = 2 × 20/21 × 20 = 40/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    40/60 = 40 × 7/60 × 7 = 280/420
  4. Add the two like fractions:
    40/420 + 280/420 = 40 + 280/420 = 320/420
  5. 320/420 simplified gives 16/21
  6. So, 2/21 + 40/60 = 16/21

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