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Subtract 10/45 from 20/7

1st number: 2 6/7, 2nd number: 10/45

20/7 - 10/45 is 166/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 45 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 7 × 45 = 315,
    20/7 = 20 × 45/7 × 45 = 900/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    10/45 = 10 × 7/45 × 7 = 70/315
  4. Subtract the two like fractions:
    900/315 - 70/315 = 900 - 70/315 = 830/315
  5. After reducing the fraction, the answer is 166/63
  6. In mixed form: 240/63

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