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Add 45/48 and 20/42

45/48 + 20/42 is 475/336.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 48 and 42 is 336

    Next, find the equivalent fraction of both fractional numbers with denominator 336
  2. For the 1st fraction, since 48 × 7 = 336,
    45/48 = 45 × 7/48 × 7 = 315/336
  3. Likewise, for the 2nd fraction, since 42 × 8 = 336,
    20/42 = 20 × 8/42 × 8 = 160/336
  4. Add the two like fractions:
    315/336 + 160/336 = 315 + 160/336 = 475/336
  5. So, 45/48 + 20/42 = 475/336
    In mixed form: 1139/336

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