Answer:
[tex]6\dfrac{23}{30} s[/tex]
Step-by-step explanation:
The first step in simplying
[tex]$4s+\frac{1}{6}s +2\frac{3}{5}s $[/tex]
is to bring the mixed number [tex]2\frac{3}{5}s[/tex] into the form of an improper fraction:
[tex]$2\dfrac{3}{5}s = (2+\frac{3}{5})s =(\frac{10}{5} +\frac{3}{5})s = \frac{13}{5}s $[/tex]
Therefore, the expression now becomes
[tex]$4s+\frac{1}{6}s +\frac{13}{5}s $[/tex]
and to simplify further we find the common denominator of the fractions which is
[tex]6*5 =30[/tex],
therefore,
[tex]$4s+\frac{5}{30}s +\frac{78}{30}s $[/tex]
[tex]$\frac{120}{30} s+\frac{5}{30}s +\frac{78}{30}s $[/tex]
add the numerator and get:
[tex]\dfrac{203}{30} s[/tex]
as a mixed number this is
[tex]6\dfrac{23}{30} s[/tex]
Thus,
[tex]$\boxed{4s+\frac{1}{6}s +2\frac{3}{5}s = 6\dfrac{23}{30} s} $[/tex]