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Subtract 2/45 from 4/7

4/7 - 2/45 is 166/315.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 45 is 315
  2. For the 1st fraction, since 7 × 45 = 315,
    4/7 = 4 × 45/7 × 45 = 180/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    2/45 = 2 × 7/45 × 7 = 14/315
  4. Subtract the two fractions:
    180/315 - 14/315 = 180 - 14/315 = 166/315

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