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Add 1/20 and 90/42

1st number: 1/20, 2nd number: 2 6/42

1/20 + 90/42 is 307/140.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 20 × 21 = 420,
    1/20 = 1 × 21/20 × 21 = 21/420
  3. Likewise, for the 2nd fraction, since 42 × 10 = 420,
    90/42 = 90 × 10/42 × 10 = 900/420
  4. Add the two like fractions:
    21/420 + 900/420 = 21 + 900/420 = 921/420
  5. 921/420 simplified gives 307/140
  6. So, 1/20 + 90/42 = 307/140
    In mixed form: 227/140

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