Question

2) 0,5 + $\frac{1}{3}$ + 0,4 + $\frac{5}{7}$ + $\frac{1}{6}$ - $\frac{4}{35}$  

Answer 1

\(=\dfrac{1}{2}+\dfrac{1}{3}+\dfrac{2}{5}+\dfrac{5}{7}+\dfrac{1}{6}-\dfrac{4}{35}\)
\(=\left(\dfrac{1}{2}+\dfrac{1}{3}+\dfrac{1}{6}\right)+\left(\dfrac{2}{5}+\dfrac{5}{7}-\dfrac{4}{35}\right)\)
\(=\left(\dfrac{3}{6}+\dfrac{2}{6}+\dfrac{1}{6}\right)+\left(\dfrac{14}{35}+\dfrac{25}{35}-\dfrac{4}{35}\right)\)
\(=\dfrac{6}{6}+\dfrac{35}{35}\)
\(=1+1\)
\(=2\)

Answer 2

0,5 + \(\dfrac{1}{3}\) + 0,4 + \(\dfrac{5}{7}\) + \(\dfrac{1}{6}\) - \(\dfrac{4}{35}\)

= 1/2 + 1/3 + 2/5 + 5/7 + 1/6 - 4/35

= (1/2 + 1/3 + 1/6) + (2/5 + 5/7 - 4/35)

= (3/6 + 2/6 + 1/6) + (14/35 + 25/35 - 4/35)

= 6/6 + 35/35

= 1 + 1

= 2