1 & 1/3 plus 1 & 3/4

37/12

Step-by-step explanation:

We can either convert them both to improper fraction or do that at the end:

First convert:

4/3 + 7/4 = ?

Using LCM (Least Common Multiple) we multiply them each to get:

16/12 + 21/12 = 37/12

Convert after:

We know 1 + 1 = 2, so we can just leave that out for now.

1/3 + 3/4 = ?

Multiply to get LCM as the denominator:

4/12 + 9/12 = 13/12

This gives us 2 + 13/12.

2 + 13/12 = 3 1/12

3 = 36/12

37/12

Therefore we now have 37/12 in improper fraction form, or 3 and 1/12 in mixed fraction form.

The answer is 3.08333333333

Step-by-step explanation:

Hope this helps you (:

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

4

step-by-step explanation: