Quarter of 60 grams

For a science experiment, students need to find 25% of 60 grams. John says, "I can find this by calculating 1/4 of 60." Andre says, "25% of 60 means 25/100 times 60." Do you agree with either of them? Show your reasoning.

Result

a =  15 g
b =  15 g
x=

Yes

No

Step-by-step explanation:

$$\begin{gathered} m=60\text{g} \\ a=\frac{1}{4}\cdot m=\frac{1}{4}\cdot 60=\frac{1\cdot 60}{4}=\frac{60}{4}=15\text{g} \end{gathered}$$

$b=\frac{25}{100}\cdot m=\frac{25}{100}\cdot 60=\frac{25\cdot 60}{100}=\frac{1500}{100}=15\text{g}$

$$\begin{gathered} a=b \\ \frac{1}{4}=\frac{25}{100} \\ x=1 \end{gathered}$$

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