<u>Part A</u>
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<u>Part B</u>
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<u>Part C</u>
No, because although they provide examples for specific polynomials being closed under addition and subtraction, there is a loss of generality.
Answer:
=- 1/6
Step-by-step explanation:
=7/12 - 3/4
=7-9/12
=-2/12
=-1/6
Answer:

Step-by-step explanation:
The Pythagorean theorem:

We have:

Substitute:

<em>subtract 64 from both sides</em>

2/5 + 3/8 = 16/40 + 15/40 = 31/40
= 1 to nearest 1
Well, they aren't necessarily the same thing, but you can use the least common multiple in order to find the least common denominator, which is crucial when solving problems dealing the addition and subtraction of fractions.