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Subtract 35/40 from 21/9

1st number: 2 3/9, 2nd number: 35/40

21/9 - 35/40 is 35/24.

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,
    21/9 = 21 × 40/9 × 40 = 840/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    35/40 = 35 × 9/40 × 9 = 315/360
  4. Subtract the two like fractions:
    840/360 - 315/360 = 840 - 315/360 = 525/360
  5. After reducing the fraction, the answer is 35/24
  6. In mixed form: 111/24

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