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Add 21/56 and 90/21

1st number: 21/56, 2nd number: 4 6/21

21/56 + 90/21 is 261/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 21 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 56 × 3 = 168,
    21/56 = 21 × 3/56 × 3 = 63/168
  3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
    90/21 = 90 × 8/21 × 8 = 720/168
  4. Add the two like fractions:
    63/168 + 720/168 = 63 + 720/168 = 783/168
  5. 783/168 simplified gives 261/56
  6. So, 21/56 + 90/21 = 261/56
    In mixed form: 437/56

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