SEE IT. UNDERSTAND IT.
Find the missing value.
From equal ratios to an equation, one step at a time.
比例變分數，再理解點解可以交叉相乘。
STEP 1 / 5Explore
Find the missing value.
Start with x : 12 = 3 : 4. We will use equal parts to understand the equation.
SEE IT. UNDERSTAND IT.
From equal ratios to an equation, one step at a time.
比例變分數，再理解點解可以交叉相乘。
Start with x : 12 = 3 : 4. We will use equal parts to understand the equation.