\(a,MSC:35\\ \dfrac{5}{7}=\dfrac{5.5}{7.5}=\dfrac{25}{35}\\ \dfrac{2}{5}=\dfrac{2.7}{5.7}=\dfrac{14}{35}\\ b,MSC:32\\ \dfrac{7}{16}=\dfrac{7.2}{16.2}=\dfrac{14}{32}\)
Giữ nguyên \(\dfrac{5}{32}\)
\(c,MSC:54\\ \dfrac{11}{18}=\dfrac{11.3}{18.3}=\dfrac{33}{54}\\ \dfrac{7}{27}=\dfrac{7.2}{27.2}=\dfrac{14}{54}\)
Dấu \(.\) là dấu nhân nha
a: 5/7=25/35
2/5=14/35
b: 7/16=14/32
5/32=5/32
c: 11/18=33/54
7/27=14/54