The factors of 28 are 1, 2, 4, 7, 14 and 28. To get the factors, the number 28 must be divided by whole numbers starting from 1, and the quotient must also be a whole number. If this is the case, the quotient and the divisor are considered factors for the number in question.
The number 28 may be presented as a product of 1 and 28, which are two of the factors. It may also be calculated as a product of the following number combinations: 2 and 14, and 4 and 7.
A convenient way to determine the factors of any number is to start with the number 1. The most basic pair of factors of any number is the number 1 and the number itself, since any number multiplied by one is equal to itself. After this, divide the number by two and check if the quotient is a whole number. If it is, include this pair of divisor and quotient as factors of the number. Continue with number 3 and succeeding numbers until the number pairs become as close as possible. All of the whole number pairs generated using this method are the factors of the given number.Learn More
Fractions cannot be added unless they have like denominators. Therefore, to add fractions with unlike denominators, you have to convert one of the fractions so that it's expressed in terms of the other fraction. This is easiest to do by rewriting lower fractions to match higher ones.Full Answer >
The decimal 0.75 is equal to three over four as a fraction, or three-fourths. It can be converted by putting 0.75 over a denominator of one, and then multiplying both by 100. From there, the fraction of 75 over 100 can be reduced to three over four by dividing by their largest common factor of 25.Full Answer >
Decimals are most often used when referring to money. If someone has $3.42, for example, he has three whole dollars and 42/100 of a dollar. Most people find it easier to compare two decimals than two fractions.Full Answer >
To find the quotient of two fractions, take the reciprocal of the divisor, or bottom fraction, and multiply it by the first fraction. Fractions can be multiplied together by multiplying the numerators together and multiplying the denominators together.Full Answer >