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Subtract 15/10 from 40/49

1st number: 40/49, 2nd number: 1 5/10

40/49 - 15/10 is -67/98.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 10 is 490
  2. For the 1st fraction, since 49 × 10 = 490,
    40/49 = 40 × 10/49 × 10 = 400/490
  3. Likewise, for the 2nd fraction, since 10 × 49 = 490,
    15/10 = 15 × 49/10 × 49 = 735/490
  4. Subtract the two fractions:
    400/490 - 735/490 = 400 - 735/490 = -335/490
  5. After reducing the fraction, the answer is -67/98

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