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Add 3/21 and 90/56

1st number: 3/21, 2nd number: 1 34/56

3/21 + 90/56 is 7/4.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 21 × 8 = 168,
    3/21 = 3 × 8/21 × 8 = 24/168
  3. Likewise, for the 2nd fraction, since 56 × 3 = 168,
    90/56 = 90 × 3/56 × 3 = 270/168
  4. Add the two like fractions:
    24/168 + 270/168 = 24 + 270/168 = 294/168
  5. 294/168 simplified gives 7/4
  6. So, 3/21 + 90/56 = 7/4
    In mixed form: 13/4

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