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Subtract 50/40 from 7/18

1st number: 7/18, 2nd number: 1 10/40

7/18 - 50/40 is -31/36.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 40 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 18 × 20 = 360,
    7/18 = 7 × 20/18 × 20 = 140/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    50/40 = 50 × 9/40 × 9 = 450/360
  4. Subtract the two like fractions:
    140/360 - 450/360 = 140 - 450/360 = -310/360
  5. After reducing the fraction, the answer is -31/36

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