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Subtract 21/35 from 7/10

7/10 - 21/35 is 1/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 35 is 70
  2. For the 1st fraction, since 10 × 7 = 70,
    7/10 = 7 × 7/10 × 7 = 49/70
  3. Likewise, for the 2nd fraction, since 35 × 2 = 70,
    21/35 = 21 × 2/35 × 2 = 42/70
  4. Subtract the two fractions:
    49/70 - 42/70 = 49 - 42/70 = 7/70
  5. After reducing the fraction, the answer is 1/10

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