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Subtract 20/70 from 9/15

9/15 - 20/70 is 11/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 70 is 210
  2. For the 1st fraction, since 15 × 14 = 210,
    9/15 = 9 × 14/15 × 14 = 126/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    20/70 = 20 × 3/70 × 3 = 60/210
  4. Subtract the two fractions:
    126/210 - 60/210 = 126 - 60/210 = 66/210
  5. After reducing the fraction, the answer is 11/35

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