Answers

Subtract 75/4 from 56/90

1^st number: 56/90, 2^nd number: 18 3/4

56/90 - 75/4 is -3263/180.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 4 is 180
2. For the 1st fraction, since 90 × 2 = 180,
   56/90 = 56 × 2/90 × 2 = 112/180
3. Likewise, for the 2nd fraction, since 4 × 45 = 180,
   75/4 = 75 × 45/4 × 45 = 3375/180
4. Subtract the two fractions:
   112/180 - 3375/180 = 112 - 3375/180 = -3263/180

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