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Add 21/90 and 18/48

21/90 + 18/48 is 73/120.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 48 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 90 × 8 = 720,
    21/90 = 21 × 8/90 × 8 = 168/720
  3. Likewise, for the 2nd fraction, since 48 × 15 = 720,
    18/48 = 18 × 15/48 × 15 = 270/720
  4. Add the two like fractions:
    168/720 + 270/720 = 168 + 270/720 = 438/720
  5. 438/720 simplified gives 73/120
  6. So, 21/90 + 18/48 = 73/120

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