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Subtract 70/40 from 28/9

1st number: 3 1/9, 2nd number: 1 30/40

28/9 - 70/40 is 49/36.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 9 × 40 = 360,
    28/9 = 28 × 40/9 × 40 = 1120/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    70/40 = 70 × 9/40 × 9 = 630/360
  4. Subtract the two like fractions:
    1120/360 - 630/360 = 1120 - 630/360 = 490/360
  5. After reducing the fraction, the answer is 49/36
  6. In mixed form: 113/36

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