Question

What is 1 1/4 + 3 3/8 = pls show your work

Answer 1

Answer:

Exact form: 37/8 Decimal form: 4.625 Mixed number form: 4 5/8

Step-by-step explanation:

dd the whole numbers first.

4+\frac{1}{4}+\frac{3}{8}

4+

4

1

​

+

8

3

​

2 Find the Least Common Denominator (LCD) of \frac{1}{4},\frac{3}{8}

4

1

​

,

8

3

​

. In other words, find the Least Common Multiple (LCM) of 4,84,8.

LCD = 88

3 Make the denominators the same as the LCD.

4+\frac{1\times 2}{4\times 2}+\frac{3}{8}

4+

4×2

1×2

​

+

8

3

​

4 Simplify. Denominators are now the same.

4+\frac{2}{8}+\frac{3}{8}

4+

8

2

​

+

8

3

​

5 Join the denominators.

4+\frac{2+3}{8}

4+

8

2+3

​

6 Simplify.

4\frac{5}{8}

4

8

5

​