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Subtract 20/49 from 15/8

1st number: 1 7/8, 2nd number: 20/49

15/8 - 20/49 is 575/392.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 49 is 392
  2. For the 1st fraction, since 8 × 49 = 392,
    15/8 = 15 × 49/8 × 49 = 735/392
  3. Likewise, for the 2nd fraction, since 49 × 8 = 392,
    20/49 = 20 × 8/49 × 8 = 160/392
  4. Subtract the two fractions:
    735/392 - 160/392 = 735 - 160/392 = 575/392
  5. In mixed form: 1183/392

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