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Subtract 3/7 from 90/30

1st number: 3 0/30, 2nd number: 3/7

90/30 - 3/7 is 18/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 7 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 30 × 7 = 210,
    90/30 = 90 × 7/30 × 7 = 630/210
  3. Likewise, for the 2nd fraction, since 7 × 30 = 210,
    3/7 = 3 × 30/7 × 30 = 90/210
  4. Subtract the two like fractions:
    630/210 - 90/210 = 630 - 90/210 = 540/210
  5. After reducing the fraction, the answer is 18/7
  6. In mixed form: 24/7

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