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Subtract 70/90 from 12/7

1st number: 1 5/7, 2nd number: 70/90

12/7 - 70/90 is 59/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 7 × 90 = 630,
    12/7 = 12 × 90/7 × 90 = 1080/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    70/90 = 70 × 7/90 × 7 = 490/630
  4. Subtract the two like fractions:
    1080/630 - 490/630 = 1080 - 490/630 = 590/630
  5. After reducing the fraction, the answer is 59/63

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