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Add 21/48 and 16/90

21/48 + 16/90 is 443/720.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 48 and 90 is 720
  2. For the 1st fraction, since 48 × 15 = 720,
    21/48 = 21 × 15/48 × 15 = 315/720
  3. Likewise, for the 2nd fraction, since 90 × 8 = 720,
    16/90 = 16 × 8/90 × 8 = 128/720
  4. Add the two fractions:
    315/720 + 128/720 = 315 + 128/720 = 443/720
  5. So, 21/48 + 16/90 = 443/720

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