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Add 42/20 and 27/21

1st number: 2 2/20, 2nd number: 1 6/21

42/20 + 27/21 is 237/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 21 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 20 × 21 = 420,
    42/20 = 42 × 21/20 × 21 = 882/420
  3. Likewise, for the 2nd fraction, since 21 × 20 = 420,
    27/21 = 27 × 20/21 × 20 = 540/420
  4. Add the two like fractions:
    882/420 + 540/420 = 882 + 540/420 = 1422/420
  5. 1422/420 simplified gives 237/70
  6. So, 42/20 + 27/21 = 237/70
    In mixed form: 327/70

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