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Add 5/21 and 90/48

1st number: 5/21, 2nd number: 1 42/48

5/21 + 90/48 is 355/168.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 48 is 336

    Next, find the equivalent fraction of both fractional numbers with denominator 336
  2. For the 1st fraction, since 21 × 16 = 336,
    5/21 = 5 × 16/21 × 16 = 80/336
  3. Likewise, for the 2nd fraction, since 48 × 7 = 336,
    90/48 = 90 × 7/48 × 7 = 630/336
  4. Add the two like fractions:
    80/336 + 630/336 = 80 + 630/336 = 710/336
  5. 710/336 simplified gives 355/168
  6. So, 5/21 + 90/48 = 355/168
    In mixed form: 219/168

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