how to multiply the fraction and how to subract mix fraction??

how to find out lcm of two unlike fractions ?

what is the lcm of 1/4 and 5/6

Ravi had 5/6 of a cake . He ate 2/3 of it. what part of cake he eat ?

the speed of car is 54 1/2 km per hour.what is the distance travelled in 7/2 hours and 35/2 minutes? ans fast pls

what is 2/4 + 8/5 ?

salil wants to put a picture in a frame.The picture is 7three-fifth centimeter wide.to fit in the frame the picture cannot be more than 7three-tenth cm wide.hw much the picture be trimmed?

What is numinator and what is denominator??????

how can we find a equivalent fraction?

 a rectangular sheet of paper is12 1/2 long and 10 2/3 wide find it's perimeter?

can u tell me the answer plzz!

 express the greatest 3 digit number as a product of primes

what is the gross,scoreand dozen

  for eg :

1. 1 score = _____ unit
2. 7gross=   _____ unit
3. 8 dozen = _____ unit

please explain with some more eg.  

A piece of wire metre long broke into two pieces. One piece was metre long. How long is the other piece?