Question

Answer 1

Hi vọng có bạn giúp

Answer 2

=3/4+6/7+19/32+1/4+1/7+13/32

=1+1+1

=3

Answer 3

\(\dfrac{75}{100}+\dfrac{18}{21}+\dfrac{19}{32}+\dfrac{1}{4}+\dfrac{3}{21}+\dfrac{13}{32}\)

\(=\left(\dfrac{75}{100}+\dfrac{1}{4}\right)+\left(\dfrac{18}{21}+\dfrac{3}{21}\right)+\left(\dfrac{19}{32}+\dfrac{13}{32}\right)\)

\(=\dfrac{75+25}{100}+\dfrac{18+3}{21}+\dfrac{19+13}{32}\)

\(=\dfrac{100}{100}+\dfrac{21}{21}+\dfrac{32}{32}\)

\(1+1+1=3\)