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Subtract 98/50 from 7/21

1st number: 7/21, 2nd number: 1 48/50

7/21 - 98/50 is -122/75.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 50 is 1050

    Next, find the equivalent fraction of both fractional numbers with denominator 1050
  2. For the 1st fraction, since 21 × 50 = 1050,
    7/21 = 7 × 50/21 × 50 = 350/1050
  3. Likewise, for the 2nd fraction, since 50 × 21 = 1050,
    98/50 = 98 × 21/50 × 21 = 2058/1050
  4. Subtract the two like fractions:
    350/1050 - 2058/1050 = 350 - 2058/1050 = -1708/1050
  5. After reducing the fraction, the answer is -122/75

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