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Subtract 75/20 from 70/7

1st number: 10 0/7, 2nd number: 3 15/20

70/7 - 75/20 is 25/4.

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,
    70/7 = 70 × 20/7 × 20 = 1400/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    75/20 = 75 × 7/20 × 7 = 525/140
  4. Subtract the two fractions:
    1400/140 - 525/140 = 1400 - 525/140 = 875/140
  5. After reducing the fraction, the answer is 25/4
  6. In mixed form: 61/4

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