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Subtract 7/45 from 4/8

4/8 - 7/45 is 31/90.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 45 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 8 × 45 = 360,
    4/8 = 4 × 45/8 × 45 = 180/360
  3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
    7/45 = 7 × 8/45 × 8 = 56/360
  4. Subtract the two like fractions:
    180/360 - 56/360 = 180 - 56/360 = 124/360
  5. After reducing the fraction, the answer is 31/90

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