SOLUTION: solve w/21-w/35=1/21

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Question 421721: solve w/21-w/35=1/21
Answer by Adrish(44) About Me  (Show Source):
You can put this solution on YOUR website!
Solutions: Multiply the whole equation by 21, we get
w/21x 21 -w/35 x 21 =1/21 x21
w -3w/5 =1
(5w-3w)/5 =1
2w/5 =1
By cross multiplying we get
2w= 5
w=5/2