A large sports stadium has 21 000 seats. The seats are organized into blocks of either 400 or 450 seats. There are
3 times as many blocks of 450 seats as there are blocks of 400 400 seats. How many blocks are there.
(1/4) + (1/8)= 3/8
We generally do it by taking l.c.m of 4& 8 and do further by general procedure.
Can we do it by multipling 4 and 8 and then divide the result 32 by 4 and by 8. We get again 3/8. Is this method correct?
The sales tax for a certain state can be found by multiplying the purchase price by. What is the sales tax on an item that is $25.60? Express your answer as a decimal.