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Add 24/42 and 28/40

24/42 + 28/40 is 89/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 40 is 840
  2. For the 1st fraction, since 42 × 20 = 840,
    24/42 = 24 × 20/42 × 20 = 480/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    28/40 = 28 × 21/40 × 21 = 588/840
  4. Add the two fractions:
    480/840 + 588/840 = 480 + 588/840 = 1068/840
  5. After reducing the fraction, the answer is 89/70
  6. In mixed form: 119/70

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