אני קוראת את המאמר הזה במחשב הנייד שלי, כי יותר נוח לי לכתוב עליו הערות.

Because קוראת is the feminine singular present-tense form of לקרוא (to read).

• אני קורא = I am reading / I read (said by a male speaker)
• אני קוראת = I am reading / I read (said by a female speaker)

Hebrew present-tense verbs agree with the gender and number of the subject, even with אני.

את marks a definite direct object.

In this sentence, המאמר הזה (this article) is definite, so Hebrew uses את before it:

• אני קוראת את המאמר הזה

There is no direct English equivalent for את. It does not mean the or this; it just marks that the object is specific/definite.

Compare:

• אני קוראת מאמר = I am reading an article
• אני קוראת את המאמר = I am reading the article

In Hebrew, demonstratives like this usually come after the noun:

• המאמר הזה = this article
• הספר הזה = this book
• הילדה הזאת = this girl

So unlike English, Hebrew says something like the article this.

Also notice that the noun is definite with ה־:

• המאמר הזה

This is the normal spoken pattern. A form like מאמר זה exists, but it is more formal or written in style.

Hebrew noun phrases usually follow this order:

noun + adjective + possessive

So:

• מחשב = computer
• נייד = portable / mobile
• מחשב נייד = laptop
• המחשב הנייד שלי = my laptop

Literally, it is something like:

the computer portable of-mine

A few important points:

• The adjective נייד comes after the noun מחשב
• The possessive שלי comes at the end
• Because the phrase is definite, both the noun and adjective take ה־:
  • המחשב הנייד

Hebrew often uses ב־ when talking about doing something using a device, medium, or tool.

So:

• במחשב = on the computer / by computer
• בטלפון = on the phone
• באינטרנט = on the internet

This is very natural Hebrew. It does not always match English prepositions exactly.

In this sentence, במחשב הנייד שלי means that the reading is being done using the laptop.

Because נוח לי here is an impersonal expression meaning it is comfortable/convenient for me.

The adjective נוח stays in the masculine singular default form in this kind of structure:

• נוח לי
• קשה לי
• חשוב לי
• מותר לי

It is not describing the speaker as a woman. It is describing the situation or action as convenient.

So:

• יותר נוח לי לכתוב = it is more convenient for me to write

If the adjective were describing a feminine noun directly, then you would expect feminine agreement. But that is not what is happening here.

לי means to me or for me.

In this sentence, it shows who finds the action convenient:

• נוח לי = it is comfortable/convenient for me
• נוח לך = convenient for you
• נוח לו = convenient for him

So יותר נוח לי לכתוב עליו הערות means:

• It is more convenient for me to write notes on it

Hebrew often uses this adjective + indirect object structure where English might use for me.

לכתוב is the infinitive of the verb כתב (to write).

The ל־ at the beginning is the normal marker of the Hebrew infinitive:

• לקרוא = to read
• לכתוב = to write
• ללמוד = to study

After expressions like נוח לי (it is convenient for me), Hebrew commonly uses an infinitive to say what is convenient:

• נוח לי לכתוב = it is convenient for me to write
• קשה לי להבין = it is hard for me to understand

So here, לכתוב עליו הערות is the activity that is more convenient.

עליו is made from:

• על = on / about
• ־יו = him / it (masculine singular)

So עליו means on it, about it, or on him, depending on context.

Here it refers back to המאמר (the article), which is masculine singular. That is why the pronoun is masculine singular.

In this sentence:

• לכתוב עליו הערות = to write notes on it / about it

With מאמר, this can mean writing notes directly on the article or writing comments concerning it. The exact nuance depends on context, but both are natural.

Because הערות here is indefinite: notes, not the notes.

Hebrew uses את only with a definite direct object. Since this is just notes in a general sense, there is no את.

Compare:

• לכתוב הערות = to write notes
• לכתוב את ההערות = to write the notes

So in the sentence, הערות is an indefinite plural noun.

כי means because.

It introduces the reason:

• אני קוראת את המאמר הזה במחשב הנייד שלי
  = I’m reading this article on my laptop
• כי יותר נוח לי לכתוב עליו הערות
  = because it’s more convenient for me to write notes on it

So כי connects the main statement with the explanation.

Yes, a little. Hebrew word order is somewhat flexible, especially for emphasis.

The sentence uses a very natural order:

• כי יותר נוח לי לכתוב עליו הערות

But you may also hear:

• כי נוח לי יותר לכתוב עליו הערות
• כי לי יותר נוח לכתוב עליו הערות

These versions shift the emphasis slightly:

• יותר נוח לי focuses naturally on more convenient
• לי יותר נוח emphasizes for me
• נוח לי יותר sounds a bit more conversational in some contexts

The original sentence is completely natural and standard.