No, the students answer is decently far off the correct answer would be 1 7/10 pounds because, to add fractions you first need to find a common denominator that both of the numbers go into for example for this one 10 is a common denominator because 5 goes into 10 twice and 10 goes into 10 once so we multiply 4/5 by 2 because it take twice the amount of 5 to get to 10 and what we do to one side we must replicate on the other side as well. Like so, 4/5*2=8/10 now all the we have to do is take 8/10+9/10=17/10 and simplifying that down you get 1 7/10 because 10 goes into 17/10 one time with 7 left over and because 7 is prime that answer can not be simplified down any more.
<u></u>The answer is no, because the net weight or the pounds the packages weigh together isn't close to 5 pounds---------->
given two packages of hamburgers 4/5 of a pound, package 1 9/10 of a pound, package 2 -------------------------------- 10/10 =1pound 5X 10/10= 50/10= 5pounds first convert both to same denominator, find the lowest common multiple between the denominators, 10,5 10 is the smallest so lets turn all answer into something over #/10 4 X -- = -- 5 10 √ 5x2=10 what ever you multiply the bottom you multiply to the top we multiplied the bottom by 2 so we need to multiply the top by 2/ 4X2=8 8 -- 10 ------------- since 9/10 already has 10 in the denominator we can keep this as this is ----------------------------------------------------------------------------------- 8 9 17 7 17 17 50 -- + --= --- = 1 -- =---pounds of hamburgers. -- ≠5 pound/ --- pounds 10 10 10 10 10 10 10
