Question

( 2/5 + 1/2 ) x 1/4 = ?

Answer 1

\(=\left(\dfrac{4}{10}+\dfrac{5}{10}\right)\times\dfrac{1}{4}=\dfrac{9}{10}\times\dfrac{1}{4}=\dfrac{9}{40}\)

Answer 2

\(\left(\dfrac{2}{5}+\dfrac{1}{2}\right)x\dfrac{1}{4}=\dfrac{9}{10}x\dfrac{1}{4}=\dfrac{9}{40}\)

Answer 3

9/40

Answer 4

( 2/5 + 1/2 ) x 1/4 = 9/10 x 1/4 = 9/40

Answer 5

=9/10nhân 1/4

=9/40

Answer 6

\(\left(\dfrac{2}{5}+\dfrac{1}{2}\right)\)x\(\dfrac{1}{4}\)
\(=\dfrac{9}{10}\)x\(\dfrac{1}{4}\)
\(=\dfrac{9}{40}\)