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Add 75/20 and 5/40

1st number: 3 15/20, 2nd number: 5/40

75/20 + 5/40 is 31/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 40 is 40
  2. For the 1st fraction, since 20 × 2 = 40,
    75/20 = 75 × 2/20 × 2 = 150/40
  3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
    5/40 = 5 × 1/40 × 1 = 5/40
  4. Add the two fractions:
    150/40 + 5/40 = 150 + 5/40 = 155/40
  5. After reducing the fraction, the answer is 31/8
  6. In mixed form: 37/8

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