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Add 72/40 and 6/15

1st number: 1 32/40, 2nd number: 6/15

72/40 + 6/15 is 11/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 15 is 120
  2. For the 1st fraction, since 40 × 3 = 120,
    72/40 = 72 × 3/40 × 3 = 216/120
  3. Likewise, for the 2nd fraction, since 15 × 8 = 120,
    6/15 = 6 × 8/15 × 8 = 48/120
  4. Add the two fractions:
    216/120 + 48/120 = 216 + 48/120 = 264/120
  5. After reducing the fraction, the answer is 11/5
  6. In mixed form: 21/5

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