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Subtract 15/90 from 1/35

1/35 - 15/90 is -29/210.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 90 is 630
  2. For the 1st fraction, since 35 × 18 = 630,
    1/35 = 1 × 18/35 × 18 = 18/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    15/90 = 15 × 7/90 × 7 = 105/630
  4. Subtract the two fractions:
    18/630 - 105/630 = 18 - 105/630 = -87/630
  5. After reducing the fraction, the answer is -29/210

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