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Subtract 9/40 from 15/4

1st number: 3 3/4, 2nd number: 9/40

15/4 - 9/40 is 141/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 40 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 4 × 10 = 40,
    15/4 = 15 × 10/4 × 10 = 150/40
  3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
    9/40 = 9 × 1/40 × 1 = 9/40
  4. Subtract the two like fractions:
    150/40 - 9/40 = 150 - 9/40 = 141/40
  5. In mixed form: 321/40

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