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Add 18/42 and 10/45

18/42 + 10/45 is 41/63.

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,
    18/42 = 18 × 15/42 × 15 = 270/630
  3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
    10/45 = 10 × 14/45 × 14 = 140/630
  4. Add the two fractions:
    270/630 + 140/630 = 270 + 140/630 = 410/630
  5. 410/630 simplified gives 41/63
  6. So, 18/42 + 10/45 = 41/63

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