\(a,\dfrac{2}{8}=\dfrac{1}{4}\\ b,\dfrac{6}{18}=\dfrac{1}{3}\\ c,\dfrac{17}{24}-\dfrac{8}{24}=\dfrac{9}{24}=\dfrac{3}{8}\)
\(a,\dfrac{5}{8}-\dfrac{3}{8}=\dfrac{5-3}{8}=\dfrac{2}{8}=\dfrac{1}{4}\)
\(b,\dfrac{23}{18}-\dfrac{17}{18}=\dfrac{23-17}{18}=\dfrac{6}{18}=\dfrac{1}{3}\)
\(c,\dfrac{17}{24}-\dfrac{1}{3}=\dfrac{17}{24}-\dfrac{8}{24}=\dfrac{17-8}{24}=\dfrac{9}{24}=\dfrac{3}{8}\)
Đáp án :
a) 2/8=1/4
b) 6/18=1/3
c) 17/24-8/24= 9/24=3/8