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Subtract 4/7 from 7/30

7/30 - 4/7 is -71/210.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 7 is 210
  2. For the 1st fraction, since 30 × 7 = 210,
    7/30 = 7 × 7/30 × 7 = 49/210
  3. Likewise, for the 2nd fraction, since 7 × 30 = 210,
    4/7 = 4 × 30/7 × 30 = 120/210
  4. Subtract the two fractions:
    49/210 - 120/210 = 49 - 120/210 = -71/210

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