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Add 90/21 and 5/16

1st number: 4 6/21, 2nd number: 5/16

90/21 + 5/16 is 515/112.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 16 is 336

    Next, find the equivalent fraction of both fractional numbers with denominator 336
  2. For the 1st fraction, since 21 × 16 = 336,
    90/21 = 90 × 16/21 × 16 = 1440/336
  3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
    5/16 = 5 × 21/16 × 21 = 105/336
  4. Add the two like fractions:
    1440/336 + 105/336 = 1440 + 105/336 = 1545/336
  5. 1545/336 simplified gives 515/112
  6. So, 90/21 + 5/16 = 515/112
    In mixed form: 467/112

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