Question
Complete the fifth row in the Leibnitz triangle which is based on subtraction.
✓
Answer
$
\frac{1}{4} \times \frac{1}{5}=\frac{1}{20} \text { Also } \frac{1}{5} \times \frac{1}{6}=\frac{1}{30}
$
$\therefore$ Leibnitz triangle becomes
\frac{1}{4} \times \frac{1}{5}=\frac{1}{20} \text { Also } \frac{1}{5} \times \frac{1}{6}=\frac{1}{30}
$
$\therefore$ Leibnitz triangle becomes
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