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Subtract 56/90 from 70/40

1st number: 1 30/40, 2nd number: 56/90

70/40 - 56/90 is 203/180.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 90 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 40 × 9 = 360,
    70/40 = 70 × 9/40 × 9 = 630/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    56/90 = 56 × 4/90 × 4 = 224/360
  4. Subtract the two like fractions:
    630/360 - 224/360 = 630 - 224/360 = 406/360
  5. After reducing the fraction, the answer is 203/180
  6. In mixed form: 123/180

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