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Add 75/20 and 18/40

1st number: 3 15/20, 2nd number: 18/40

75/20 + 18/40 is 21/5.

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,
    18/40 = 18 × 1/40 × 1 = 18/40
  4. Add the two fractions:
    150/40 + 18/40 = 150 + 18/40 = 168/40
  5. 168/40 simplified gives 21/5
  6. So, 75/20 + 18/40 = 21/5
    In mixed form: 41/5

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