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Convert these unlike fractions to equivalent like fractions and add them. If possible, reduce the final sum.

[tex]\[
\frac{1}{5} + \frac{2}{3}
\][/tex]

Sagot :

Sure, let's work through this problem step-by-step.

### Step 1: Understand the Fractions

We have two fractions:
[tex]\[ \frac{1}{5} \][/tex]
and
[tex]\[ 1 \frac{2}{3} = 1 + \frac{2}{3} \][/tex]

First, we'll convert the mixed number [tex]\(1 \frac{2}{3}\)[/tex] into an improper fraction.

### Step 2: Convert the Mixed Number to an Improper Fraction

A mixed number like [tex]\(1 \frac{2}{3}\)[/tex] can be converted to an improper fraction as follows:
[tex]\[ 1 \frac{2}{3} = 1 + \frac{2}{3} \][/tex]

To add these, we first convert the whole number part to a fraction:

[tex]\[ 1 = \frac{3}{3} \][/tex]

Now we can add the two fractions:

[tex]\[ \frac{3}{3} + \frac{2}{3} = \frac{3 + 2}{3} = \frac{5}{3} \][/tex]

So:
[tex]\[ 1 \frac{2}{3} = \frac{5}{3} \][/tex]

### Step 3: Find a Common Denominator

To add [tex]\(\frac{1}{5}\)[/tex] and [tex]\(\frac{5}{3}\)[/tex], we need a common denominator.

The denominators are 5 and 3. The least common multiple of 5 and 3 is 15.

### Step 4: Convert Each Fraction to Have the Common Denominator

Now, we convert both fractions to have a denominator of 15:

For [tex]\(\frac{1}{5}\)[/tex]:
[tex]\[ \frac{1}{5} = \frac{1 \times 3}{5 \times 3} = \frac{3}{15} \][/tex]

For [tex]\(\frac{5}{3}\)[/tex]:
[tex]\[ \frac{5}{3} = \frac{5 \times 5}{3 \times 5} = \frac{25}{15} \][/tex]

### Step 5: Add the Fractions

Now, we add the two like fractions:
[tex]\[ \frac{3}{15} + \frac{25}{15} = \frac{3 + 25}{15} = \frac{28}{15} \][/tex]

### Step 6: Simplify the Fraction (if possible)

In this case, the fraction [tex]\(\frac{28}{15}\)[/tex] is already in its simplest form because 28 and 15 have no common factors other than 1.

### Final Answer:
So, the sum of the fractions [tex]\(\frac{1}{5}\)[/tex] and [tex]\(1 \frac{2}{3}\)[/tex] is:

[tex]\[ \frac{28}{15} \][/tex]