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Subtract 5/72 from 20/7

1st number: 2 6/7, 2nd number: 5/72

20/7 - 5/72 is 1405/504.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 72 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 7 × 72 = 504,
    20/7 = 20 × 72/7 × 72 = 1440/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    5/72 = 5 × 7/72 × 7 = 35/504
  4. Subtract the two like fractions:
    1440/504 - 35/504 = 1440 - 35/504 = 1405/504
  5. In mixed form: 2397/504

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