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Subtract 25/70 from 70/21

1st number: 3 7/21, 2nd number: 25/70

70/21 - 25/70 is 125/42.

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,
    70/21 = 70 × 10/21 × 10 = 700/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    25/70 = 25 × 3/70 × 3 = 75/210
  4. Subtract the two like fractions:
    700/210 - 75/210 = 700 - 75/210 = 625/210
  5. After reducing the fraction, the answer is 125/42
  6. In mixed form: 241/42

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