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Add 80/42 and 54/72

1st number: 1 38/42, 2nd number: 54/72

80/42 + 54/72 is 223/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 72 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 42 × 12 = 504,
    80/42 = 80 × 12/42 × 12 = 960/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    54/72 = 54 × 7/72 × 7 = 378/504
  4. Add the two like fractions:
    960/504 + 378/504 = 960 + 378/504 = 1338/504
  5. 1338/504 simplified gives 223/84
  6. So, 80/42 + 54/72 = 223/84
    In mixed form: 255/84

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