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Add 63/42 and 27/15

1st number: 1 21/42, 2nd number: 1 12/15

63/42 + 27/15 is 33/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 15 is 210
  2. For the 1st fraction, since 42 × 5 = 210,
    63/42 = 63 × 5/42 × 5 = 315/210
  3. Likewise, for the 2nd fraction, since 15 × 14 = 210,
    27/15 = 27 × 14/15 × 14 = 378/210
  4. Add the two fractions:
    315/210 + 378/210 = 315 + 378/210 = 693/210
  5. 693/210 simplified gives 33/10
  6. So, 63/42 + 27/15 = 33/10
    In mixed form: 33/10

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