5/8 and 3/12 what is the least common denominator (lcm) for the fractions ?

First off, LCM is NOT Least Common Denominator. It's Least Common Multiple.

In this case, i'll just do both.

LCM:

8 * 3 = 24

12 * 2 = 24

LCD:

1 or 2, depending on your homework.

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child does not get an education so she can use the molla on junk

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation: