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Subtract 21/9 from 24/70

1st number: 24/70, 2nd number: 2 3/9

24/70 - 21/9 is -209/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 9 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 70 × 9 = 630,
    24/70 = 24 × 9/70 × 9 = 216/630
  3. Likewise, for the 2nd fraction, since 9 × 70 = 630,
    21/9 = 21 × 70/9 × 70 = 1470/630
  4. Subtract the two like fractions:
    216/630 - 1470/630 = 216 - 1470/630 = -1254/630
  5. After reducing the fraction, the answer is -209/105

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