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Subtract 7/70 from 6/72

6/72 - 7/70 is -1/60.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 70 is 2520
  2. For the 1st fraction, since 72 × 35 = 2520,
    6/72 = 6 × 35/72 × 35 = 210/2520
  3. Likewise, for the 2nd fraction, since 70 × 36 = 2520,
    7/70 = 7 × 36/70 × 36 = 252/2520
  4. Subtract the two fractions:
    210/2520 - 252/2520 = 210 - 252/2520 = -42/2520
  5. After reducing the fraction, the answer is -1/60

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