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Subtract 45/70 from 90/4

1st number: 22 2/4, 2nd number: 45/70

90/4 - 45/70 is 153/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 70 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 4 × 35 = 140,
    90/4 = 90 × 35/4 × 35 = 3150/140
  3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
    45/70 = 45 × 2/70 × 2 = 90/140
  4. Subtract the two like fractions:
    3150/140 - 90/140 = 3150 - 90/140 = 3060/140
  5. After reducing the fraction, the answer is 153/7
  6. In mixed form: 216/7

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