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Subtract 15/9 from 7/5

1st number: 1 2/5, 2nd number: 1 6/9

7/5 - 15/9 is -4/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 9 is 45
  2. For the 1st fraction, since 5 × 9 = 45,
    7/5 = 7 × 9/5 × 9 = 63/45
  3. Likewise, for the 2nd fraction, since 9 × 5 = 45,
    15/9 = 15 × 5/9 × 5 = 75/45
  4. Subtract the two fractions:
    63/45 - 75/45 = 63 - 75/45 = -12/45
  5. After reducing the fraction, the answer is -4/15

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