a. Jessie's error occurs when simplifying the expression 17/5 x 3/10. Jessie multiplies the numerators (17 x 3) and the denominators (5 x 10) separately, rather than cross multiplying the fractions.
b. The correct answer is 51/50, which can be simplified to 1 1/50.
Jessie was given the problem 3 2/5÷3/10= to solve. Jessie’s work looks like this:
3 2/5 ÷ 3/10=
17/5 ÷ 3/10=
17x3
17/5 x 3/10= ---------
5x10
51/10 = 1 1/50
Jessie’s answer is incorrect. Answer the following questions about Jessie’s work.
a. Find and describe Jessie’s error.
b. What is the correct answer?
1 answer
1 answer