Evaluate - dfrac-2-7- - dfrac-3-14-

Question

Toppr Admin · Accepted Answer

- -dfrac-2-7- - -dfrac-3-14-Taking LCM-2 -2-7-7 -7-7-160- -1-1- -dfrac-2-7- - -dfrac-3-14- - -dfrac-2 -times 2-7 -times 2- - -dfrac-left - -3 -times 1-right -14 -times 1- -160- -dfrac-4 - 3-14- - -dfrac-1-14-

Evaluate :
$$ \dfrac{-2}{7} - \dfrac{3}{-14}$$

$$ \dfrac{-2}{7} - \dfrac{3}{-14}$$
Taking LCM
$$2 |2,7$$
$$7 |7,7$$
$$|1,1$$
$$ \dfrac{-2}{7} - \dfrac{3}{-14} = \dfrac{-2 \times 2}{7 \times 2} - \dfrac{\left ( -3 \times 1\right )}{14 \times 1} $$
$$ =\dfrac{-4 + 3}{14} = \dfrac{-1}{14}$$

Evaluate :$$ \dfrac{-2}{7} - \dfrac{3}{-14}$$

$$ \dfrac{-2}{7} - \dfrac{3}{-14}$$Taking LCM$$2 |2,7$$$$7 |7,7$$ $$|1,1$$$$ \dfrac{-2}{7} - \dfrac{3}{-14} = \dfrac{-2 \times 2}{7 \times 2} - \dfrac{\left ( -3 \times 1\right )}{14 \times 1} $$ $$ =\dfrac{-4 + 3}{14} = \dfrac{-1}{14}$$

Evaluate :
$$ \dfrac{-2}{7} - \dfrac{3}{-14}$$

$$ \dfrac{-2}{7} - \dfrac{3}{-14}$$
Taking LCM
$$2 |2,7$$
$$7 |7,7$$
$$|1,1$$
$$ \dfrac{-2}{7} - \dfrac{3}{-14} = \dfrac{-2 \times 2}{7 \times 2} - \dfrac{\left ( -3 \times 1\right )}{14 \times 1} $$
$$ =\dfrac{-4 + 3}{14} = \dfrac{-1}{14}$$