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Add 45/12 and 42/7

1st number: 3 9/12, 2nd number: 6 0/7

45/12 + 42/7 is 39/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 7 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 12 × 7 = 84,
    45/12 = 45 × 7/12 × 7 = 315/84
  3. Likewise, for the 2nd fraction, since 7 × 12 = 84,
    42/7 = 42 × 12/7 × 12 = 504/84
  4. Add the two like fractions:
    315/84 + 504/84 = 315 + 504/84 = 819/84
  5. 819/84 simplified gives 39/4
  6. So, 45/12 + 42/7 = 39/4
    In mixed form: 93/4

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