By Wilma T. Good on May 28 2018 04:31:35
Once students have a basic familiarity with fractions, the next step is to understand how to compare fractions. Sometimes the concept of denominators takes a little time to grasp. Often students will confuse a larger denominator with a larger value for the fraction, when in reality the numerator, not the denominator, expressed the actual value being represented. The size of the numerator relative to the denominator is what ultimately describes the actual value of the fraction.
We often talk of dividing as being the reverse of multiplying, and indeed when dividing fractions this is the case. The way you divide fractions is very similar to the way fractions are multiplied with a simple twist in the middle.
To multiply fractions, first convert any mixed fractions to improper fractions. Then, multiply the numerators across to get the answer numerator. Do the same thing for the denominators, multiplying the two values across to get the answer fraction s denominator. Reduce, and if the answer is improper, turn it into a mixed fraction.
When adding fractions without a common denominator, it is necessary to find a common denominator before adding the numerators. Find two equivalent fractions by determining the least common multiple of the two denominators and using that as the denominator for both fractions.