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Subtract 98/50 from 21/90

1st number: 21/90, 2nd number: 1 48/50

21/90 - 98/50 is -259/150.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 50 is 450
  2. For the 1st fraction, since 90 × 5 = 450,
    21/90 = 21 × 5/90 × 5 = 105/450
  3. Likewise, for the 2nd fraction, since 50 × 9 = 450,
    98/50 = 98 × 9/50 × 9 = 882/450
  4. Subtract the two fractions:
    105/450 - 882/450 = 105 - 882/450 = -777/450
  5. After reducing the fraction, the answer is -259/150

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