IDNLearn.com makes it easy to find accurate answers to your questions. Our platform provides prompt, accurate answers from experts ready to assist you with any question you may have.

Complete the following calculations. Write answers as mixed numbers in their simplest form.

(a) [tex]3 \frac{5}{6} + 2 \frac{2}{3}[/tex]


Sagot :

To solve the addition of the mixed numbers [tex]\(3 \frac{5}{6}\)[/tex] and [tex]\(2 \frac{2}{3}\)[/tex], follow these steps:

1. Convert the mixed numbers to improper fractions:

- For [tex]\(3 \frac{5}{6}\)[/tex]:
[tex]\[ 3 \frac{5}{6} = \frac{3 \cdot 6 + 5}{6} = \frac{18 + 5}{6} = \frac{23}{6} \][/tex]

- For [tex]\(2 \frac{2}{3}\)[/tex]:
[tex]\[ 2 \frac{2}{3} = \frac{2 \cdot 3 + 2}{3} = \frac{6 + 2}{3} = \frac{8}{3} \][/tex]

2. Find a common denominator:
- The denominators of the fractions are 6 and 3. The least common multiple (LCM) of 6 and 3 is 6.

3. Convert fractions to have the same denominator:
- To convert [tex]\(\frac{8}{3}\)[/tex] to a denominator of 6:
[tex]\[ \frac{8}{3} = \frac{8 \cdot 2}{3 \cdot 2} = \frac{16}{6} \][/tex]

4. Add the numerators:
- Now, add the fractions [tex]\(\frac{23}{6}\)[/tex] and [tex]\(\frac{16}{6}\)[/tex]:
[tex]\[ \frac{23}{6} + \frac{16}{6} = \frac{23 + 16}{6} = \frac{39}{6} \][/tex]

5. Simplify the resulting fraction:
- The greatest common divisor (GCD) of 39 and 6 is 3. Simplify [tex]\(\frac{39}{6}\)[/tex]:
[tex]\[ \frac{39}{6} = \frac{39 \div 3}{6 \div 3} = \frac{13}{2} \][/tex]

6. Convert back to a mixed number:
- To convert [tex]\(\frac{13}{2}\)[/tex] to a mixed number, divide the numerator by the denominator:
[tex]\[ 13 \div 2 = 6 \text{ remainder } 1 \][/tex]
Thus, [tex]\(\frac{13}{2} = 6 \frac{1}{2}\)[/tex].

So, the simplified form of the sum [tex]\(3 \frac{5}{6} + 2 \frac{2}{3}\)[/tex] is:
[tex]\[ 6 \frac{1}{2} \][/tex]