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Add 18/45 and 42/10

1st number: 18/45, 2nd number: 4 2/10

18/45 + 42/10 is 23/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 10 is 90
  2. For the 1st fraction, since 45 × 2 = 90,
    18/45 = 18 × 2/45 × 2 = 36/90
  3. Likewise, for the 2nd fraction, since 10 × 9 = 90,
    42/10 = 42 × 9/10 × 9 = 378/90
  4. Add the two fractions:
    36/90 + 378/90 = 36 + 378/90 = 414/90
  5. 414/90 simplified gives 23/5
  6. So, 18/45 + 42/10 = 23/5
    In mixed form: 43/5

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