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Subtract 7/63 from 28/70

28/70 - 7/63 is 13/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 63 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 70 × 9 = 630,
    28/70 = 28 × 9/70 × 9 = 252/630
  3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
    7/63 = 7 × 10/63 × 10 = 70/630
  4. Subtract the two like fractions:
    252/630 - 70/630 = 252 - 70/630 = 182/630
  5. After reducing the fraction, the answer is 13/45

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