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Subtract 4/9 from 70/20

1st number: 3 10/20, 2nd number: 4/9

70/20 - 4/9 is 55/18.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 9 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    70/20 = 70 × 9/20 × 9 = 630/180
  3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
    4/9 = 4 × 20/9 × 20 = 80/180
  4. Subtract the two like fractions:
    630/180 - 80/180 = 630 - 80/180 = 550/180
  5. After reducing the fraction, the answer is 55/18
  6. In mixed form: 31/18

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