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Q: What is the rule for changing mixed fractions to improper?

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They have to have a common denominator

Dissimilar fractions are fractions whose denominators are different. Any rules will depend on what you wish to do with them.

Take the 2nd fraction, switch the denominator with the numerator, multiply across, simplify.

To change a fraction to a percent you must first divide! Say you have 1/4 as your fraction. You have to divide the top number by the bottom number, which will give you 0.25. From there, to find a percent from a decimal, you always have to move the decimal point to the right TWICE. So, following that rule, you'll find the percent, which in this case is 25%. :) Hope this helped!

You do not need to convert them, but it makes the calculation much simpler. For example to multiply 31/4 by 71/5: 31/4 = 3 + 1/4 71/5 = 7 + 1/5 31/4 x 71/5 = (3 + 1/4) x (7 + 1/5) = 3 x 7 + 3 x 1/5 + 1/4 x 7 + 1/4 x 1/5 = 21 + 3/5 + 1 3/4 + 1/20 = 21 + 12/20 + 1 + 15/20 + 1/20 = 22 + 18/20 = 232/5 Or, using improper fractions: 3 1/4 = 13/4 71/5 = 36/5 31/4 x 71/5 = 13/4 x 36/5 = (13 x 36)/(4 x 5) = (13 x 9)/5 = 117/5 = 232/5 Which with less calculations to be done is simpler and less liable to incur a mistake. With division the calculations would be horrendous whereas with improper fractions the "invert divisor and multiply" rule can be used very effectively: 31/4 / 71/5 13/4 / 36/5 = 13/4 x 5/36 = 65/144

Related questions

An algorithm is a rule or procedure for solving a particular problem. We are not told what is the problem involving these 2 fractions which is to be solved.

To convert a mixed number to an improper fraction, multiply the denominator by the whole number, add that total to the numerator and put the whole thing over the original denominator.

First, change it so that the two fractions have the same denominator (by changing the fractions into equivalent fractions). Once the two fractions have the same denominator, it is simply a case of subtracting the numerators, leaving the denominator the same. Finally, reduce the fraction to its lowest terms (if possible).

As an improper fraction the numerator will be greater than the denominator or it will be a 'top heavy' fraction

As a general rule, proper fractions cannot turn into whole numbers and only in limited cases are improper fractions able to. The only way a fraction becomes a whole number is if the numerator is a multiple of the denominator.

First you multiply the whole number by the denominator then add the numerator to the product then put the answer over the denominator

They have to have a common denominator

Fractions

use your pattern to write a rule for equivalent fractions

3/4 750

Rule #1 When two fractions have the same denominator, the bigger fraction is the one with the bigger numerator. Rule # 2 When comparing fractions that have the same numerator, the bigger fraction is the one with the smaller denominator. Rule # 3 You can convert the fractions and then just put the greater than, less than or equal to sign to see what the comparison is between the fractions.

Proper, and the Prefix of the Improper is the "Im" and the Meaning of the proper is dishonest and against a law or a rule

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