GuideFoot - Learn Together, Grow Smarter. Logo

In Mathematics / High School | 2025-07-03

(a) [tex]\frac{4}{3} + \frac{3}{4}[/tex] (b) [tex]\frac{7}{4} + \frac{1}{7}[/tex] (c) [tex]\frac{1}{6} + \frac{11}{12}[/tex] (d) [tex]3\frac{2}{3} + 1\frac{3}{8}[/tex]

Asked by jennaonyx1502

Answer (1)

To solve the given fractions, we will add them together by finding a common denominator for each pair.
(a) 3 4 ​ + 4 3 ​
First, find the least common denominator (LCD) of 3 and 4, which is 12.

Convert 3 4 ​ to 12 16 ​
Convert 4 3 ​ to 12 9 ​

Now add the fractions: 12 16 ​ + 12 9 ​ = 12 25 ​ = 2 12 1 ​
(b) 4 7 ​ + 7 1 ​
The LCD of 4 and 7 is 28.

Convert 4 7 ​ to 28 49 ​
Convert 7 1 ​ to 28 4 ​

Now add them: 28 49 ​ + 28 4 ​ = 28 53 ​ = 1 28 25 ​
(c) 6 1 ​ + 12 11 ​
The LCD of 6 and 12 is 12.

Convert 6 1 ​ to 12 2 ​
12 11 ​ stays the same.

Now add them: 12 2 ​ + 12 11 ​ = 12 13 ​ = 1 12 1 ​
(d) 3 3 2 ​ + 1 8 3 ​
First, convert the mixed numbers to improper fractions:

3 3 2 ​ = 3 11 ​
1 8 3 ​ = 8 11 ​

Find the LCD of 3 and 8, which is 24.

Convert 3 11 ​ to 24 88 ​
Convert 8 11 ​ to 24 33 ​

Add them: 24 88 ​ + 24 33 ​ = 24 121 ​ = 5 24 1 ​
Therefore, the answers for each part are:

(a) 2 12 1 ​
(b) 1 28 25 ​
(c) 1 12 1 ​
(d) 5 24 1 ​

Answered by OliviaLunaGracy | 2025-07-06