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Subtract 9/10 from 7/5

1st number: 1 2/5, 2nd number: 9/10

7/5 - 9/10 is 1/2.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 10 is 10
  2. For the 1st fraction, since 5 × 2 = 10,
    7/5 = 7 × 2/5 × 2 = 14/10
  3. Likewise, for the 2nd fraction, since 10 × 1 = 10,
    9/10 = 9 × 1/10 × 1 = 9/10
  4. Subtract the two fractions:
    14/10 - 9/10 = 14 - 9/10 = 5/10
  5. After reducing the fraction, the answer is 1/2

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