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Subtract 28/8 from 40/70

1st number: 40/70, 2nd number: 3 4/8

40/70 - 28/8 is -41/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 8 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 70 × 4 = 280,
    40/70 = 40 × 4/70 × 4 = 160/280
  3. Likewise, for the 2nd fraction, since 8 × 35 = 280,
    28/8 = 28 × 35/8 × 35 = 980/280
  4. Subtract the two like fractions:
    160/280 - 980/280 = 160 - 980/280 = -820/280
  5. After reducing the fraction, the answer is -41/14

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