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Add 5/4 and 20/42

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

5/4 + 20/42 is 145/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 42 is 84
  2. For the 1st fraction, since 4 × 21 = 84,
    5/4 = 5 × 21/4 × 21 = 105/84
  3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
    20/42 = 20 × 2/42 × 2 = 40/84
  4. Add the two fractions:
    105/84 + 40/84 = 105 + 40/84 = 145/84
  5. In mixed form: 161/84

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