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Subtract 80/9 from 7/40

1st number: 7/40, 2nd number: 8 8/9

7/40 - 80/9 is -3137/360.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 9 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 40 × 9 = 360,
    7/40 = 7 × 9/40 × 9 = 63/360
  3. Likewise, for the 2nd fraction, since 9 × 40 = 360,
    80/9 = 80 × 40/9 × 40 = 3200/360
  4. Subtract the two like fractions:
    63/360 - 3200/360 = 63 - 3200/360 = -3137/360

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