To subtract these fractions, first find the lowest common multiple of their denominators. The first few multiples of 2 are [2, 4, 6, 8, 10, 12, 14, 16, 18, 20] and the first few multiples of 4 are [4, 8, 12, 16, 20, 24, 28, 32, 36, 40]. The first few multiples they share are [4, 8, 12, 16, 20] making 4 the smallest multiple 2 and 4 share.

Next, convert the fractions so each denominator equals the lowest common multiple:

\( \frac{3 x 2}{2 x 2} \) - \( \frac{7 x 1}{4 x 1} \)

\( \frac{6}{4} \) - \( \frac{7}{4} \)

Now, because the fractions share a common denominator, you can subtract them:

\( \frac{6 - 7}{4} \) = \( \frac{-1}{4} \) = -\(\frac{1}{4}\)

A factorial has the form n! and is the product of the integer (n) and all the positive integers below it. For example, 5! = 5 x 4 x 3 x 2 x 1 = 120.

A number with an exponent (b^e) consists of a base (b) raised to a power (e). The exponent indicates the number of times that the base is multiplied by itself. A base with an exponent of 1 equals the base (b¹ = b) and a base with an exponent of 0 equals 1 ( (b⁰ = 1).

By buying two shirts, Frank will save $26 x \( \frac{35}{100} \) = \( \frac{$26 x 35}{100} \) = \( \frac{$910}{100} \) = $9.10 on the second shirt.

So, his total cost will be
$26.00 + ($26.00 - $9.10)
$26.00 + $16.90
$42.90

A factor is a positive integer that divides evenly into a given number. For example, the factors of 8 are 1, 2, 4, and 8.