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Add 90/28 and 81/18

1st number: 3 6/28, 2nd number: 4 9/18

90/28 + 81/18 is 54/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 18 is 252
  2. For the 1st fraction, since 28 × 9 = 252,
    90/28 = 90 × 9/28 × 9 = 810/252
  3. Likewise, for the 2nd fraction, since 18 × 14 = 252,
    81/18 = 81 × 14/18 × 14 = 1134/252
  4. Add the two fractions:
    810/252 + 1134/252 = 810 + 1134/252 = 1944/252
  5. 1944/252 simplified gives 54/7
  6. So, 90/28 + 81/18 = 54/7
    In mixed form: 75/7

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