Question

Tìm số nguyên x , y , z biết : \(\frac{12}{16}\)= \(\frac{-x}{4}\)= \(\frac{21}{y}\)= \(\frac{z}{80}\)

Answer 1

đề sai 12/16 là dương mà -x/4 là âm

Answer 2

\(\frac{12}{16}=\frac{3}{4}=\frac{21}{28}=\frac{60}{80}\)

=> x=3 ; y = 28 ; z = 60

Answer 3

\(\frac{12}{16}=\frac{-3}{-4}=\frac{21}{28}=\frac{60}{80}\)

=> -x = -3 ; y = 28 ; z = 60

Answer 4

\(\frac{12}{16}=\frac{12:4}{16:4}=\frac{3}{4}=\frac{3.7}{4.7}=\frac{3.20}{4.20}=\frac{21}{28}=\frac{60}{80}\)