Question

Question 124

A student multiplied two mixed fraction in the following manner:$2\frac{4}{7}\times 3\frac{1}{4}=6\frac{1}{7}$
What error the student has done.?

Answer 1

For multiplying two mixed fractions, first convert them into an improper fraction.
So,
$2\frac{4}{7}\times 3\frac{1}{4}=\frac{2\times 7+4}{7}\times \frac{3\times 4+1}{4}=\frac{18}{7}\times \frac{13}{4}=\frac{234}{28}=\frac{117}{14}=8\frac{5}{14}$