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Add 45/90 and 8/21

45/90 + 8/21 is 37/42.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 90 × 7 = 630,
    45/90 = 45 × 7/90 × 7 = 315/630
  3. Likewise, for the 2nd fraction, since 21 × 30 = 630,
    8/21 = 8 × 30/21 × 30 = 240/630
  4. Add the two like fractions:
    315/630 + 240/630 = 315 + 240/630 = 555/630
  5. 555/630 simplified gives 37/42
  6. So, 45/90 + 8/21 = 37/42

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