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Add 21/45 and 9/48

21/45 + 9/48 is 157/240.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 48 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 45 × 16 = 720,
    21/45 = 21 × 16/45 × 16 = 336/720
  3. Likewise, for the 2nd fraction, since 48 × 15 = 720,
    9/48 = 9 × 15/48 × 15 = 135/720
  4. Add the two like fractions:
    336/720 + 135/720 = 336 + 135/720 = 471/720
  5. 471/720 simplified gives 157/240
  6. So, 21/45 + 9/48 = 157/240

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