The least common multiple (LCM) is the smallest positive integer that is a multiple of two or more integers.

The absolute value is the positive magnitude of a particular number or variable and is indicated by two vertical lines: \(\left|-5\right| = 5\). In the case of a variable absolute value (\(\left|a\right| = 5\)) the value of a can be either positive or negative (a = -5 or a = 5).

The amount of flour you need is (3\(\frac{1}{2}\) - \(\frac{7}{8}\)) cups. Rewrite the quantities so they share a common denominator and subtract:

(\( \frac{28}{8} \) - \( \frac{7}{8} \)) cups
\( \frac{21}{8} \) cups
2\(\frac{5}{8}\) cups

To multiply terms with radicals, multiply the coefficients and radicands separately:

5\( \sqrt{7} \) x 2\( \sqrt{8} \)
(5 x 2)\( \sqrt{7 \times 8} \)
10\( \sqrt{56} \)

Now we need to simplify the radical:

10\( \sqrt{56} \)
10\( \sqrt{14 \times 4} \)
10\( \sqrt{14 \times 2^2} \)
(10)(2)\( \sqrt{14} \)
20\( \sqrt{14} \)

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.