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Add 72/16 and 42/20

1st number: 4 8/16, 2nd number: 2 2/20

72/16 + 42/20 is 33/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 20 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 20 × 4 = 80,
    42/20 = 42 × 4/20 × 4 = 168/80
  4. Add the two fractions:
    360/80 + 168/80 = 360 + 168/80 = 528/80
  5. 528/80 simplified gives 33/5
  6. So, 72/16 + 42/20 = 33/5
    In mixed form: 63/5

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