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Add 40/42 and 27/48

40/42 + 27/48 is 509/336.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 48 is 336
  2. For the 1st fraction, since 42 × 8 = 336,
    40/42 = 40 × 8/42 × 8 = 320/336
  3. Likewise, for the 2nd fraction, since 48 × 7 = 336,
    27/48 = 27 × 7/48 × 7 = 189/336
  4. Add the two fractions:
    320/336 + 189/336 = 320 + 189/336 = 509/336
  5. In mixed form: 1173/336

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