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Add 9/24 and 42/70

9/24 + 42/70 is 39/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 24 and 70 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 24 × 35 = 840,
    9/24 = 9 × 35/24 × 35 = 315/840
  3. Likewise, for the 2nd fraction, since 70 × 12 = 840,
    42/70 = 42 × 12/70 × 12 = 504/840
  4. Add the two like fractions:
    315/840 + 504/840 = 315 + 504/840 = 819/840
  5. 819/840 simplified gives 39/40
  6. So, 9/24 + 42/70 = 39/40

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