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Subtract 45/7 from 18/4

1st number: 4 2/4, 2nd number: 6 3/7

18/4 - 45/7 is -27/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 7 is 28
  2. For the 1st fraction, since 4 × 7 = 28,
    18/4 = 18 × 7/4 × 7 = 126/28
  3. Likewise, for the 2nd fraction, since 7 × 4 = 28,
    45/7 = 45 × 4/7 × 4 = 180/28
  4. Subtract the two fractions:
    126/28 - 180/28 = 126 - 180/28 = -54/28
  5. After reducing the fraction, the answer is -27/14

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