a) 15/60= 1/4
b) 56/24 = 7/3
c) 3/7 x 35/6 = 105/42 = 5/2
d) 8/9 x 1/4 = 2/9
\(a.\dfrac{5}{6}.\dfrac{3}{10}=\dfrac{5.3}{3.2.5.2}=\dfrac{1}{4}\)
b \(8.\dfrac{7}{24}=8.\dfrac{7}{8.3}=\dfrac{7}{3}\)
c. \(\dfrac{3}{7}:\dfrac{6}{35}=\dfrac{3}{7}.\dfrac{35}{6}=\dfrac{3}{7}.\dfrac{5.7}{3.2}=\dfrac{5}{2}\)
d. \(\dfrac{8}{9}:4=\dfrac{8}{9}.\dfrac{1}{4}=\dfrac{2}{9}\)
a) 15/60 = 1/4
b) 56/24 = 7/3
c) 3/7 x 35/6 = 105/42 = 5/2
d) 8/9 x 1/4 = 2/9
do tui ko viết được phân số á
A = 1/4 ( rút gọn )
B=7/3 (rút gọn)
C=5/2 (rút gọn)
D=2/9 ( tiếp tục rút gọn )
