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Subtract 9/7 from 42/5

1st number: 8 2/5, 2nd number: 1 2/7

42/5 - 9/7 is 249/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 7 is 35
  2. For the 1st fraction, since 5 × 7 = 35,
    42/5 = 42 × 7/5 × 7 = 294/35
  3. Likewise, for the 2nd fraction, since 7 × 5 = 35,
    9/7 = 9 × 5/7 × 5 = 45/35
  4. Subtract the two fractions:
    294/35 - 45/35 = 294 - 45/35 = 249/35
  5. In mixed form: 74/35

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