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Subtract 2/72 from 20/70

20/70 - 2/72 is 65/252.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 72 is 2520

    Next, find the equivalent fraction of both fractional numbers with denominator 2520
  2. For the 1st fraction, since 70 × 36 = 2520,
    20/70 = 20 × 36/70 × 36 = 720/2520
  3. Likewise, for the 2nd fraction, since 72 × 35 = 2520,
    2/72 = 2 × 35/72 × 35 = 70/2520
  4. Subtract the two like fractions:
    720/2520 - 70/2520 = 720 - 70/2520 = 650/2520
  5. After reducing the fraction, the answer is 65/252

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