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Add 16/21 and 8/90

16/21 + 8/90 is 268/315.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 21 × 30 = 630,
    16/21 = 16 × 30/21 × 30 = 480/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    8/90 = 8 × 7/90 × 7 = 56/630
  4. Add the two like fractions:
    480/630 + 56/630 = 480 + 56/630 = 536/630
  5. 536/630 simplified gives 268/315
  6. So, 16/21 + 8/90 = 268/315

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