Question

Chỉ giúp mik câu này nha

13/7 -8/6 +8/7 - 4/6 - 1/3

Answer 1

\(\frac{13}{7}-\frac{8}{6}+\frac{8}{7}-\frac{4}{6}-\frac{1}{3}\)

\(=\left(\frac{13}{7}+\frac{8}{7}\right)-\left(\frac{8}{6}+\frac{4}{6}\right)-\frac{1}{3}\)

\(=3-2-\frac{1}{3}\)

\(=1-\frac{1}{3}\)

\(=\frac{2}{3}\)

Answer 2

Ta có \(\frac{13}{7}-\frac{8}{6}+\frac{8}{7}-\frac{4}{6}-\frac{1}{3}\)

\(=\frac{13}{7}-\frac{8}{6}+\frac{8}{7}-\frac{4}{6}-\frac{2}{6}\)

\(=\left(\frac{13}{7}+\frac{8}{7}\right)-\left(\frac{8}{6}+\frac{4}{6}+\frac{2}{6}\right)\)

\(=3-2\)

\(=1\)

Answer 3

\(=\frac{13}{7}-\frac{8}{6}+\frac{8}{7}-\frac{4}{6}\)

\(=\frac{13}{7}+\frac{8}{7}+\left(\frac{-8}{6}+\frac{-4}{6}\right)\)

\(=\frac{21}{7}+\frac{-12}{6}\)

\(=3+\left(-2\right)=1\)

Answer 4

(13/7+8/7)+(8/6-4/6)+1/3 

= 3 +2 +1/3 

= 5 +1/3 = 15/3+1/3

=16/3