Subtract 45/90 from 9/4
1st number: 2 1/4, 2nd number: 45/90
9/4 - 45/90 is 7/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
9/4 = 9 × 45/4 × 45 = 405/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
45/90 = 45 × 2/90 × 2 = 90/180 - Subtract the two like fractions:
405/180 - 90/180 = 405 - 90/180 = 315/180 - After reducing the fraction, the answer is 7/4
- In mixed form: 13/4
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