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Subtract 35/20 from 30/7

1st number: 4 2/7, 2nd number: 1 15/20

30/7 - 35/20 is 71/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 20 is 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,
    35/20 = 35 × 7/20 × 7 = 245/140
  4. Subtract the two fractions:
    600/140 - 245/140 = 600 - 245/140 = 355/140
  5. After reducing the fraction, the answer is 71/28
  6. In mixed form: 215/28

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