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Subtract 15/90 from 10/7

1st number: 1 3/7, 2nd number: 15/90

10/7 - 15/90 is 53/42.

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,
    10/7 = 10 × 90/7 × 90 = 900/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    15/90 = 15 × 7/90 × 7 = 105/630
  4. Subtract the two like fractions:
    900/630 - 105/630 = 900 - 105/630 = 795/630
  5. After reducing the fraction, the answer is 53/42
  6. In mixed form: 111/42

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