Question

An electrician has 4.1 meters of wire.

Answer 1

A)He can cut 5 strips of of 7/10m.

7/10=0.7m

0.7*5=3.5m 
3.5m of wire wil be used in cutting possible 7/10m pieces.

b)Leftover will be 0.6m.
4.1-3.5=0.6m

Answer 2

We know that
$4.1m= \frac{41}{10}m$

Part a) how many strip 7/10m long can he cut?

divide $\frac{41}{10}$ by $\frac{7}{10}$
so
$\frac{ \frac{41}{10}}{ \frac{7}{10}} = \frac{41}{7} \\ \\ =5.85 \\ \\ =5strip$

the answer part a) is
$5strip$

Part b) how much wire will he have left over
$5* \frac{7}{10} =3.5m$
$3.5$m of wire wil be used in cutting possible $\frac{7}{10}$m pieces

so
wire left over will be
$4.1-3.5=0.6 m$

the answer Part b) is 
$0.6m$