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Subtract 10/42 from 8/5

1st number: 1 3/5, 2nd number: 10/42

8/5 - 10/42 is 143/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 42 is 210
  2. For the 1st fraction, since 5 × 42 = 210,
    8/5 = 8 × 42/5 × 42 = 336/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    10/42 = 10 × 5/42 × 5 = 50/210
  4. Subtract the two fractions:
    336/210 - 50/210 = 336 - 50/210 = 286/210
  5. After reducing the fraction, the answer is 143/105
  6. In mixed form: 138/105

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