Describe how to add or subtract rational expressions with like denominators.
2 answers:
Answer:if the bottoms are the same keep the the sme
Step-by-step explanation:
Answer:
1. ½ + ½ = ²/2 = 1
2. ⅝ - ⅜ = ²/8 = ¼
Step-by-step explanation:
Rationals are can take the form of a fraction or decimals.
They are part of a whole.
In add or subtracting Rationals having the same denominator, the operation seems easy and fast.
Let's consider some examples:
ADDITION OF RATIONALS
1. ½ + ½ = ²/2 = 1
How:
In Working with Rationals having thesame denominator, you take the sum of the NUMERATOR and pick just one of the DENOMINATOR.
NUMERATOR: 1+1 = 2.
DENOMINATOR: 2
Operations: 2 ÷ 2 = 1.
2. ⅜ + ⅞ = 10 / 8
How:
2
Numerator: 3+7 = 10
Denominator: 8
Operations : 10/8 = 5/4
SUBTRACTION:
1. ⅝ - ⅜ = ²/8 = ¼
How:
Numerator: 5-3 = 2
Denominator: 8
Operations = 2/8 = ¼
2. ¾ - ¼ = ²/4 = ½
How:
Numerator: 3-1 = 2
Denominator: 4
Operations : ²/4 = ½
Enjoy mathematics!
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