To find five rational numbers between \(\frac{3}{5}\), and\(\frac{4}{5}\).
There are infinite rational numbers between.
\(\frac{3}{5}=\frac{3×6}{5×6}=\frac{18}{30}\)
\(\frac{4}{5}=\frac{4×6}{5×6}=\frac{24}{30}\)
Therefore, rational numbers between \(\frac{3}{5}\) and \(\frac{4}{5}\) are
\(\frac{19}{30},\frac{20}{30},\frac{21}{30},\frac{22}{30},\frac{23}{30},\)
In Fig. 9.26, A, B, C and D are four points on a circle. AC and BD intersect at a point E such that ∠ BEC = 130° and ∠ ECD = 20°. Find ∠ BAC.