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Add 3/42 and 90/20

1st number: 3/42, 2nd number: 4 10/20

3/42 + 90/20 is 32/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 20 is 420
  2. For the 1st fraction, since 42 × 10 = 420,
    3/42 = 3 × 10/42 × 10 = 30/420
  3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
    90/20 = 90 × 21/20 × 21 = 1890/420
  4. Add the two fractions:
    30/420 + 1890/420 = 30 + 1890/420 = 1920/420
  5. After reducing the fraction, the answer is 32/7
  6. In mixed form: 44/7

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