Can you add fractions with unlike denominators? if so what do you have to do.

1 answer:

5 0

If the denominators are not the same, then you have to use equivalent fractions which do have a common denominator . To do this, you need to find the least common multiple (LCM) of the two denominators.

To add fractions with unlike denominators, rename the fractions with a common denominator. Then add and simplify.

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Rachel is 40 cm taller than Lucy. Rachel is 25 percent taller than Lucy. How tall is Lucy? Explain

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What is 40cm 25% of?
The answer is 160cm.

Rachel is 160cm. 160 - 40 = 120.

Lucy is 120cm tall.

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(2b + 3r) + (4b+ r)

Pavlova-9 [17]

Let's simplify step-by-step.
2b+3r+4b+r

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=2b+3r+4b+r
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3 years ago

What is the answer to(1−5q)+2(2.5q+8)

never [62]

Greetings!

Simplify the Expression.
$=(1-5q)+2(2.5q+8)$

Distribute the Parenthesis.
How? Multiply the terms inside the Parenthesis by the term outside of the Parenthesis.
 $=1*1-1*5q+2*2.5q+2*8$

Combine Like Terms.
$=1-5q+5q+16$

$=17$

The Answer Is:
$\left[\begin{array}{ccc}17\end{array}\right]$

Hope this helps.
-Benjamin

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