Question

tính bằng 2 cách 2/3 x 1/2 +3/4

nhanh lên mình cần gấp lắm

Answer 1

    \(\dfrac{2}{3}\)  \(\times\) \(\dfrac{1}{2}\) + \(\dfrac{3}{4}\)

= \(\dfrac{1}{3}\)    + \(\dfrac{3}{4}\)

= \(\dfrac{4}{12}\)  +  \(\dfrac{9}{12}\)

= \(\dfrac{13}{12}\)

    \(\dfrac{2}{3}\) \(\times\) \(\dfrac{1}{2}\) + \(\dfrac{3}{4}\)

=  \(\dfrac{2}{6}\) + \(\dfrac{3}{4}\)

= \(\dfrac{4}{12}\) + \(\dfrac{9}{12}\)

= \(\dfrac{13}{12}\)