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Add 72/40 and 42/20

1st number: 1 32/40, 2nd number: 2 2/20

72/40 + 42/20 is 39/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 20 is 40
  2. For the 1st fraction, since 40 × 1 = 40,
    72/40 = 72 × 1/40 × 1 = 72/40
  3. Likewise, for the 2nd fraction, since 20 × 2 = 40,
    42/20 = 42 × 2/20 × 2 = 84/40
  4. Add the two fractions:
    72/40 + 84/40 = 72 + 84/40 = 156/40
  5. After reducing the fraction, the answer is 39/10
  6. In mixed form: 39/10

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