Question

Paul is filling water in a jar. First, he added water to $\frac{1}{8}$ of the jar. Then, he filled $\frac{1}{4}$ of the jar with water. How much water did he add in total?

• A. $\frac{3}{4}$
• B. $\frac{3}{8}$
• C. $\frac{5}{8}$
• D. $\frac{1}{4}$

Answer 1

The correct option is B $\frac{3}{8}$

Total water added = $\frac{1}{8}+\frac{1}{4}$
LCM (8, 4) = 8
$\frac{1}{8}+\frac{1}{4}=\frac{1}{8}+\frac{1\times 2}{4\times 2}=\frac{1}{8}+\frac{2}{8}=\frac{3}{8}$