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Add 90/72 and 81/56

1st number: 1 18/72, 2nd number: 1 25/56

90/72 + 81/56 is 151/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 56 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    90/72 = 90 × 7/72 × 7 = 630/504
  3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
    81/56 = 81 × 9/56 × 9 = 729/504
  4. Add the two like fractions:
    630/504 + 729/504 = 630 + 729/504 = 1359/504
  5. 1359/504 simplified gives 151/56
  6. So, 90/72 + 81/56 = 151/56
    In mixed form: 239/56

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