To convert a decimal to an improper fraction, you first write the decimal as a fraction with the decimal as the numerator and a power of 10 as the denominator. In this case, 4.5 can be written as 4.5/1. To convert this to an improper fraction, you multiply both the numerator and denominator by 10 to get 45/10. Simplifying this fraction by dividing both the numerator and denominator by 5 gives us the improper fraction 9/2.
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4.5 = 4 and 1/2
so, 2*4+1 in numerator; denominator does not change
= 9/2
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as improper fraction
42/7 is an improper fraction.
1/5 has no improper fraction and 2/5 has no imporper fraction
51/2 as an improper fraction is 55/10 or 11/2
It is: 31/2 as an improper fraction
The mixed number consists of a whole number and a fraction. Multiply the denominator of the fraction portion by the whole number and to this product add the numerator of the fraction portion. This value is the numerator of the new improper fraction. The denominator of the new improper fraction is the same as the denominator of the original fraction portion of the mixed number.