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Add 90/9 and 21/28

1st number: 10 0/9, 2nd number: 21/28

90/9 + 21/28 is 43/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 28 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 9 × 28 = 252,
    90/9 = 90 × 28/9 × 28 = 2520/252
  3. Likewise, for the 2nd fraction, since 28 × 9 = 252,
    21/28 = 21 × 9/28 × 9 = 189/252
  4. Add the two like fractions:
    2520/252 + 189/252 = 2520 + 189/252 = 2709/252
  5. 2709/252 simplified gives 43/4
  6. So, 90/9 + 21/28 = 43/4
    In mixed form: 103/4

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