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irakobra [83]
3 years ago
11

To add or subtract fractions, what must you have?

Mathematics
2 answers:
emmasim [6.3K]3 years ago
8 0

Answer:

<em><u>Equal denominators/common denominators</u></em>

Step-by-step explanation:

You need to have equal denominators. If you do not, then you have to multiply the denominators against each other as well as multiplying the same number to the numerator. If a number is a factor of one of the numbers then multiply the number by its other factor so as to get the same number.

<em><u>Ex. 1</u></em>

<em><u>First one explained:</u></em>

2/3 + 4/5

1/3 * 5/5 = 5/15

2/5 * 3/3 = 6/15

5/15 + 6/15 = 11/15

<em><u></u></em>

<h2><em><u>Common denominator = 15</u></em></h2>

<em><u>Ex. 2</u></em>

<em><u>Second one explained:</u></em>

2/8 + 1/4

2/8 + 1/4*2/2 = 2/8 + 2/8

= 4/8

<h2><em><u>Common Denominator = 8</u></em></h2>

Hope this helped,

Kavitha Banarjee

antiseptic1488 [7]3 years ago
4 0

Answer:

You need a common denominator.

Step-by-step explanation:

3/4+2/3

9/12+8/12

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user100 [1]

Answer:

1. 301.6 in^{3}

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3. 274.41 in^{3}

Step-by-step explanation:

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Then, you can find the volume of the box, because you know its dimentions are 12x12x4.

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Elena paints the back of a aquarium it has a height of 1 3/4 feet the painted area is 5 5/6 what is the length
Paladinen [302]

Answer:

3 1/3 feets

Step-by-step explanation:

Given that:

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7 0
3 years ago
Amir stands on a balcony and throws a ball to his dog who is at ground level. The ball's height, in meters above the ground, aft
telo118 [61]

Answer:

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Completed question;

Amir stands on a balcony and throws a ball to his dog who is at ground level. The ball's height, in meters above the ground, after t seconds that Amir has thrown the ball is given by:

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Step-by-step explanation:

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