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Subtract 25/20 from 30/7

1st number: 4 2/7, 2nd number: 1 5/20

30/7 - 25/20 is 85/28.

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,
    30/7 = 30 × 20/7 × 20 = 600/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    25/20 = 25 × 7/20 × 7 = 175/140
  4. Subtract the two like fractions:
    600/140 - 175/140 = 600 - 175/140 = 425/140
  5. After reducing the fraction, the answer is 85/28
  6. In mixed form: 31/28

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