Solve: $\frac{6}{7} - \frac{1}{2}$ .

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Solution

We have, $\frac{6}{7} - \frac{1}{2}$
To solve the above equation we need to find L.C.M of the denominator.
The L.C.M of $7$ and $2 = 2 \times 7 = 14$
$\begin{array}{rcl} \frac{6 \times 2}{7 \times 2} - \frac{1 \times 7}{2 \times 7} & = & \frac{12}{14} - \frac{7}{14} \\ = & \frac{5}{14} \end{array}$
Hence, the final answer is $\frac{5}{14}$ .

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Solve: 67-12.

We have, 67-12 To solve the above equation we need to find L.C.M of the denominator.The L.C.M of 7 and 2=2×7=146×27×2-1×72×7=1214-714=514Hence, the final answer is 514.

Solve: $\frac{6}{7} - \frac{1}{2}$ .