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Add 72/16 and 42/40

1st number: 4 8/16, 2nd number: 1 2/40

72/16 + 42/40 is 111/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 40 is 80
  2. For the 1st fraction, since 16 × 5 = 80,
    72/16 = 72 × 5/16 × 5 = 360/80
  3. Likewise, for the 2nd fraction, since 40 × 2 = 80,
    42/40 = 42 × 2/40 × 2 = 84/80
  4. Add the two fractions:
    360/80 + 84/80 = 360 + 84/80 = 444/80
  5. 444/80 simplified gives 111/20
  6. So, 72/16 + 42/40 = 111/20
    In mixed form: 511/20

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