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Add 21/30 and 18/48

21/30 + 18/48 is 43/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 48 is 240
  2. For the 1st fraction, since 30 × 8 = 240,
    21/30 = 21 × 8/30 × 8 = 168/240
  3. Likewise, for the 2nd fraction, since 48 × 5 = 240,
    18/48 = 18 × 5/48 × 5 = 90/240
  4. Add the two fractions:
    168/240 + 90/240 = 168 + 90/240 = 258/240
  5. 258/240 simplified gives 43/40
  6. So, 21/30 + 18/48 = 43/40
    In mixed form: 13/40

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