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Add 18/40 and 45/10

1st number: 18/40, 2nd number: 4 5/10

18/40 + 45/10 is 99/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 10 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 40 × 1 = 40,
    18/40 = 18 × 1/40 × 1 = 18/40
  3. Likewise, for the 2nd fraction, since 10 × 4 = 40,
    45/10 = 45 × 4/10 × 4 = 180/40
  4. Add the two like fractions:
    18/40 + 180/40 = 18 + 180/40 = 198/40
  5. 198/40 simplified gives 99/20
  6. So, 18/40 + 45/10 = 99/20
    In mixed form: 419/20

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