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Add 4/42 and 18/45

4/42 + 18/45 is 52/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 45 is 630
  2. For the 1st fraction, since 42 × 15 = 630,
    4/42 = 4 × 15/42 × 15 = 60/630
  3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
    18/45 = 18 × 14/45 × 14 = 252/630
  4. Add the two fractions:
    60/630 + 252/630 = 60 + 252/630 = 312/630
  5. 312/630 simplified gives 52/105
  6. So, 4/42 + 18/45 = 52/105

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