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Subtract 49/70 from 18/8

1st number: 2 2/8, 2nd number: 49/70

18/8 - 49/70 is 31/20.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 8 × 35 = 280,
    18/8 = 18 × 35/8 × 35 = 630/280
  3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
    49/70 = 49 × 4/70 × 4 = 196/280
  4. Subtract the two like fractions:
    630/280 - 196/280 = 630 - 196/280 = 434/280
  5. After reducing the fraction, the answer is 31/20
  6. In mixed form: 111/20

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