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Subtract 18/70 from 90/8

1st number: 11 2/8, 2nd number: 18/70

90/8 - 18/70 is 1539/140.

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,
    90/8 = 90 × 35/8 × 35 = 3150/280
  3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
    18/70 = 18 × 4/70 × 4 = 72/280
  4. Subtract the two like fractions:
    3150/280 - 72/280 = 3150 - 72/280 = 3078/280
  5. After reducing the fraction, the answer is 1539/140
  6. In mixed form: 10139/140

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