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Add 40/8 and 45/18

1st number: 5 0/8, 2nd number: 2 9/18

40/8 + 45/18 is 15/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 18 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 8 × 9 = 72,
    40/8 = 40 × 9/8 × 9 = 360/72
  3. Likewise, for the 2nd fraction, since 18 × 4 = 72,
    45/18 = 45 × 4/18 × 4 = 180/72
  4. Add the two like fractions:
    360/72 + 180/72 = 360 + 180/72 = 540/72
  5. 540/72 simplified gives 15/2
  6. So, 40/8 + 45/18 = 15/2
    In mixed form: 71/2

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