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Add 42/8 and 45/15

1st number: 5 2/8, 2nd number: 3 0/15

42/8 + 45/15 is 33/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 15 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 8 × 15 = 120,
    42/8 = 42 × 15/8 × 15 = 630/120
  3. Likewise, for the 2nd fraction, since 15 × 8 = 120,
    45/15 = 45 × 8/15 × 8 = 360/120
  4. Add the two like fractions:
    630/120 + 360/120 = 630 + 360/120 = 990/120
  5. 990/120 simplified gives 33/4
  6. So, 42/8 + 45/15 = 33/4
    In mixed form: 81/4

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