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Subtract 18/70 from 90/50

1st number: 1 40/50, 2nd number: 18/70

90/50 - 18/70 is 54/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 70 is 350

    Next, find the equivalent fraction of both fractional numbers with denominator 350
  2. For the 1st fraction, since 50 × 7 = 350,
    90/50 = 90 × 7/50 × 7 = 630/350
  3. Likewise, for the 2nd fraction, since 70 × 5 = 350,
    18/70 = 18 × 5/70 × 5 = 90/350
  4. Subtract the two like fractions:
    630/350 - 90/350 = 630 - 90/350 = 540/350
  5. After reducing the fraction, the answer is 54/35
  6. In mixed form: 119/35

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