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Subtract 90/70 from 20/4

1st number: 5 0/4, 2nd number: 1 20/70

20/4 - 90/70 is 26/7.

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,
    20/4 = 20 × 35/4 × 35 = 700/140
  3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
    90/70 = 90 × 2/70 × 2 = 180/140
  4. Subtract the two like fractions:
    700/140 - 180/140 = 700 - 180/140 = 520/140
  5. After reducing the fraction, the answer is 26/7
  6. In mixed form: 35/7

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