Question

Rút gọn:

\(\frac{3.7.11}{44.12}\)

b)\(\frac{22+77}{7.5.11}\)

Answer 1

\(\frac{3.7.11}{44.12}=\frac{3.7.11}{4.11.3.4}=\frac{7}{4.4}=\frac{7}{16}\)

\(\frac{22+77}{7.5.11}=\frac{99}{7.5.11}=\frac{9.11}{7.5.11}=\frac{9}{35}\)

Answer 2

\(\frac{3.7.11}{44.12}=\frac{3.7.11}{11.4.3.4}=\frac{7}{4^2}\)

\(\frac{22+77}{7.5.11}=\frac{11\left(2+7\right)}{35.11}\frac{9}{35}\)

Answer 3

\(a=\frac{3.7.11}{44.12}=\frac{231}{528}=\frac{7}{16}\\ b=\frac{22+77}{7.5.11}=\frac{99}{385}=\frac{9}{35}\)