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Add 42/15 and 63/4

1st number: 2 12/15, 2nd number: 15 3/4

42/15 + 63/4 is 371/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 4 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 15 × 4 = 60,
    42/15 = 42 × 4/15 × 4 = 168/60
  3. Likewise, for the 2nd fraction, since 4 × 15 = 60,
    63/4 = 63 × 15/4 × 15 = 945/60
  4. Add the two like fractions:
    168/60 + 945/60 = 168 + 945/60 = 1113/60
  5. 1113/60 simplified gives 371/20
  6. So, 42/15 + 63/4 = 371/20
    In mixed form: 1811/20

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