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Subtract 20/70 from 24/21

1st number: 1 3/21, 2nd number: 20/70

24/21 - 20/70 is 6/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 70 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 21 × 10 = 210,
    24/21 = 24 × 10/21 × 10 = 240/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    20/70 = 20 × 3/70 × 3 = 60/210
  4. Subtract the two like fractions:
    240/210 - 60/210 = 240 - 60/210 = 180/210
  5. After reducing the fraction, the answer is 6/7

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