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Add 48/12 and 18/40

1st number: 4 0/12, 2nd number: 18/40

48/12 + 18/40 is 89/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 40 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 12 × 10 = 120,
    48/12 = 48 × 10/12 × 10 = 480/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    18/40 = 18 × 3/40 × 3 = 54/120
  4. Add the two like fractions:
    480/120 + 54/120 = 480 + 54/120 = 534/120
  5. 534/120 simplified gives 89/20
  6. So, 48/12 + 18/40 = 89/20
    In mixed form: 49/20

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