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Subtract 80/35 from 30/42

1st number: 30/42, 2nd number: 2 10/35

30/42 - 80/35 is -11/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 35 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 42 × 5 = 210,
    30/42 = 30 × 5/42 × 5 = 150/210
  3. Likewise, for the 2nd fraction, since 35 × 6 = 210,
    80/35 = 80 × 6/35 × 6 = 480/210
  4. Subtract the two like fractions:
    150/210 - 480/210 = 150 - 480/210 = -330/210
  5. After reducing the fraction, the answer is -11/7

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