($\frac{9}{25}$-2.18):(3$\frac{4}{5}$+0.2)
$\frac{3^5}{4^5}$ *x =$\frac{3^7}{4^7}$
($\frac{9}{25}$-2.18):(3$\frac{4}{5}$+0.2) $\frac{3^5}{4^5}$ *x =$\frac{3^7}{4^7}$
By Valerie
By Valerie
($\frac{9}{25}$-2.18):(3$\frac{4}{5}$+0.2)
$\frac{3^5}{4^5}$ *x =$\frac{3^7}{4^7}$
Đáp án: a , ( 9/25 -2.18 ) : (34/5 + 0.2)
= (9/25 – 218/100 ):(34/5 +2/10)
= (36/100-218/100):(68/10+2/10)
= -172/100 :70/10
= -172/700
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