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Subtract 63/70 from 12/9

1st number: 1 3/9, 2nd number: 63/70

12/9 - 63/70 is 13/30.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 9 × 70 = 630,
    12/9 = 12 × 70/9 × 70 = 840/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    63/70 = 63 × 9/70 × 9 = 567/630
  4. Subtract the two like fractions:
    840/630 - 567/630 = 840 - 567/630 = 273/630
  5. After reducing the fraction, the answer is 13/30

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