Question

a) (\(\frac{3}{29}\)-\(\frac{1}{5}\)) x\(\frac{29}{3}\)

b) \(\frac{16}{15}\)x \(\frac{-5}{14}\)x\(\frac{54}{24}\)x\(\frac{56}{21}\)

c) \(\frac{37}{7}\)x\(\frac{8}{11}\)+\(\frac{37}{7}\)x\(\frac{5}{11}\)-\(\frac{37}{7}\)x\(\frac{2}{11}\)

Answer 1

a)\(\left(\frac{3}{29}-\frac{1}{5}\right)\cdot\frac{29}{3}\)

\(=\left(\frac{3}{29}\cdot\frac{29}{3}\right)-\left(\frac{1}{5}\cdot\frac{29}{3}\right)\)

\(=1-\frac{29}{15}\)

\(=\frac{-14}{15}\)

b)\(\frac{16}{15}\cdot\frac{-5}{14}\cdot\frac{54}{24}\cdot\frac{56}{21}\)

=\(=\frac{16\cdot\left(-5\right)\cdot54\cdot56}{15\cdot14\cdot24\cdot21}\)

\(=\frac{2^4\cdot\left(-5\right)\cdot2\cdot3^3\cdot2^3\cdot7}{3\cdot5\cdot7\cdot2\cdot2^3\cdot3\cdot7}\)

\(=2^4\)

c)\(\frac{37}{7}\cdot\frac{8}{11}+\frac{37}{7}\cdot\frac{5}{11}-\frac{37}{7}\cdot\frac{2}{11}\)

\(=\frac{37}{7}\cdot\left(\frac{8}{11}+\frac{5}{11}-\frac{2}{11}\right)\)

\(=\frac{37}{7}\cdot1\)

\(=\frac{37}{7}\)

Đúng nhớ k nhen!

Answer 2

b)\(-2^4\)nãy mk nhầm

Answer 3

thank you cho mk xin nick fb của bn

Answer 4

https://www.facebook.com/quyt.wn0013

vào cái này nek