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Subtract 3/10 from 9/7

1st number: 1 2/7, 2nd number: 3/10

9/7 - 3/10 is 69/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 10 is 70
  2. For the 1st fraction, since 7 × 10 = 70,
    9/7 = 9 × 10/7 × 10 = 90/70
  3. Likewise, for the 2nd fraction, since 10 × 7 = 70,
    3/10 = 3 × 7/10 × 7 = 21/70
  4. Subtract the two fractions:
    90/70 - 21/70 = 90 - 21/70 = 69/70

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