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Subtract 2/70 from 21/35

21/35 - 2/70 is 4/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 70 is 70

    Next, find the equivalent fraction of both fractional numbers with denominator 70
  2. For the 1st fraction, since 35 × 2 = 70,
    21/35 = 21 × 2/35 × 2 = 42/70
  3. Likewise, for the 2nd fraction, since 70 × 1 = 70,
    2/70 = 2 × 1/70 × 1 = 2/70
  4. Subtract the two like fractions:
    42/70 - 2/70 = 42 - 2/70 = 40/70
  5. After reducing the fraction, the answer is 4/7

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