<span> $843.44 is the answer to this problem
</span>
Answer:
We just add numerators and rewrite denominator.
Adding unlike dominators:
We need to find the same denominators. You need to find the least common multiple (LCM) of the two denominators.
Step-by-step explanation:
You mean unlike denominators and like denominators.
Adding like dominators: We just add numerators and rewrite denominator :
Example : 
Adding unlike dominators:
We need to find the same denominators. You need to find the least common multiple (LCM) of the two denominators.
For example :

LCM for 5 and 4 is 20 : Now, divide by 5 and multiply by 1 for first fraction. 20 divide by 4 and multiply by 3 :

Yes, the number of words ARE proportional to the number of minutes she types, away to tell is when it says Bella types at a CONSTANT rate of 42 words per minute. This means for every minute 42 words will be added.
The total worth of the 4 pounds and 8 ounces of box is $1800
<h3>Total cost</h3>
Weight of the boxes:
- 4 pounds
- 8 ounces
- Cost of each pound = $400
Convert ounces to pounds:
8 ounces to pounds = 0.5 pounds
Total cost of the boxes = 4 pounds (400) + 0.5 pounds (400)
= 1600 + 200
= $1,800
Learn more about ounces to pounds:
brainly.com/question/10618309
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