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Subtract 98/20 from 3/7

1st number: 3/7, 2nd number: 4 18/20

3/7 - 98/20 is -313/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 20 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 7 × 20 = 140,
    3/7 = 3 × 20/7 × 20 = 60/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    98/20 = 98 × 7/20 × 7 = 686/140
  4. Subtract the two like fractions:
    60/140 - 686/140 = 60 - 686/140 = -626/140
  5. After reducing the fraction, the answer is -313/70

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