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Subtract 8/10 from 42/18

1st number: 2 6/18, 2nd number: 8/10

42/18 - 8/10 is 23/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 10 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 18 × 5 = 90,
    42/18 = 42 × 5/18 × 5 = 210/90
  3. Likewise, for the 2nd fraction, since 10 × 9 = 90,
    8/10 = 8 × 9/10 × 9 = 72/90
  4. Subtract the two like fractions:
    210/90 - 72/90 = 210 - 72/90 = 138/90
  5. After reducing the fraction, the answer is 23/15
  6. In mixed form: 18/15

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