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Rudik [331]
3 years ago
8

Describe how to add or subtract rational expressions with like denominators.

Mathematics
2 answers:
Veronika [31]3 years ago
8 0

Answer:if the bottoms are the same keep the the sme

Step-by-step explanation:

Reil [10]3 years ago
3 0

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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Deffense [45]

Answer:

15.71 ft

Step-by-step explanation:

Given that:

width of the circular track = 2.5ft

Suppose the radius of the inner circle is 57 ft since it is not given

Then the radius of the outer circle = (2.5 + 57) ft = 59.5 ft

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For inner circle now, the circumference = 358.14 ft

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A recipe requires 1/3 cup of oil for every 2/5 cup of water. How much oil (in cups) is needed per cup of water?
igor_vitrenko [27]
3/8 cups of oil

Step by step explanation:

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Answer:

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