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Subtract 4/70 from 1/80

1/80 - 4/70 is -5/112.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 70 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 80 × 7 = 560,
    1/80 = 1 × 7/80 × 7 = 7/560
  3. Likewise, for the 2nd fraction, since 70 × 8 = 560,
    4/70 = 4 × 8/70 × 8 = 32/560
  4. Subtract the two like fractions:
    7/560 - 32/560 = 7 - 32/560 = -25/560
  5. After reducing the fraction, the answer is -5/112

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