Question

1/3+1/4+1/5+8/10+20/30=????????

Answer 1

=20/60+15/60+12/60+48/60+40/60

=135/60

=9/4

Answer 2

\(\dfrac{1}{3}+\dfrac{1}{4}+\dfrac{1}{5}+\dfrac{8}{10}+\dfrac{20}{30}+\dfrac{15}{20}\)

\(=\dfrac{20}{60}+\dfrac{15}{60}+\dfrac{12}{60}+\dfrac{48}{60}+\dfrac{40}{60}+\dfrac{45}{60}\)

\(=\dfrac{180}{60}\)

\(=3\)

mình bổ xung \(\dfrac{15}{20}\) rồi nhé