Which pair of fractions and mixed numbers have a common denominator of 42?

a. 3 2/3 and 5/7

b. 2 1/6 and 3/4

c. 5 3/14 and 1/5

d. 1 4/7 and 5/8

A. 3 2/3 and 5/7

Step-by-step explanation:

The pair of fraction that has the same denominator of 42 are 3 2/3 and 5/7.

First fraction 3 2/3 = 11/3

Second fraction = 5/7

If we look at the denominator of both fractions i.e 3 and 7, they are both factor of 42. Since this two values can easily go in 42 without remainder, then we can conclude that both fraction initially has a denominator of 42.

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:

step-by-step explanation: