SOLUTION: How do I multiply 4 1/5 x 10/21 x 9/20? It has been 31 years since I have taken math and this question has lost me. I have looked over my examples that I have and I just do not

Question 213782: How do I multiply 4 1/5 x 10/21 x 9/20?
It has been 31 years since I have taken math and this question has lost me. I have looked over my examples that I have and I just do not understand. I would appreciate your help, thanks
Answer by tutor_paul(519) (Show Source): You can put this solution on YOUR website!
4 1/5 x 10/21 x 9/20
First Convert the mixed number to an improper fraction:

you can rewrite this as:

you can cancel the 21's first to make the subsequent multiplication easier:

You can do more cancelling or just multiply out the numerator and denominator (as i wil do) and cancel later:

Reduce this by dividing numerator and denominator by 10:

================
Good Luck,
tutor_paul@yahoo.com

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