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Add 15/4 and 42/45

1st number: 3 3/4, 2nd number: 42/45

15/4 + 42/45 is 281/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 45 is 180
  2. For the 1st fraction, since 4 × 45 = 180,
    15/4 = 15 × 45/4 × 45 = 675/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    42/45 = 42 × 4/45 × 4 = 168/180
  4. Add the two fractions:
    675/180 + 168/180 = 675 + 168/180 = 843/180
  5. After reducing the fraction, the answer is 281/60
  6. In mixed form: 441/60

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