Question

Bài 1 : Rút gọn :

a) \(\frac{42}{15.7}\)        

b) \(\frac{35.6}{336}\)

c) \(\frac{4.33}{11.12}\)

d) \(\frac{9.4+9.11+5.9}{+63}\)

Answer 1

a)\(\frac{42}{15.7}\)= \(\frac{2.3.7}{3.5.7}\)= \(\frac{2}{5}\)

b) \(\frac{35.6}{336}\)= \(\frac{5.7.6}{6.7.8}\)= \(\frac{5}{8}\)

c) \(\frac{4.33}{11.12}\)= \(\frac{4.3.11}{11.3.4}\)= 1

d) \(\frac{9.4+9.11+5.9}{63}\)= \(\frac{9.\left(4+11+5\right)}{9.7}\)= \(\frac{20}{7}\)

#Hk tốt nhé

Answer 2

\(\frac{42}{17.7}\)

\(=\frac{6}{17.1}\)

\(=\frac{6}{17}\)