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Add 40/42 and 2/20

40/42 + 2/20 is 221/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 20 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 42 × 10 = 420,
    40/42 = 40 × 10/42 × 10 = 400/420
  3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
    2/20 = 2 × 21/20 × 21 = 42/420
  4. Add the two like fractions:
    400/420 + 42/420 = 400 + 42/420 = 442/420
  5. 442/420 simplified gives 221/210
  6. So, 40/42 + 2/20 = 221/210
    In mixed form: 111/210

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