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Add 48/20 and 9/21

1st number: 2 8/20, 2nd number: 9/21

48/20 + 9/21 is 99/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 21 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 20 × 21 = 420,
    48/20 = 48 × 21/20 × 21 = 1008/420
  3. Likewise, for the 2nd fraction, since 21 × 20 = 420,
    9/21 = 9 × 20/21 × 20 = 180/420
  4. Add the two like fractions:
    1008/420 + 180/420 = 1008 + 180/420 = 1188/420
  5. 1188/420 simplified gives 99/35
  6. So, 48/20 + 9/21 = 99/35
    In mixed form: 229/35

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