Question

what should be added to 6/7to give_3/5​

Answer 1

Let x be the required fraction.

Then we got,

$\frac{6}{7} + x = \frac{3}{5}$

$x = \frac{3}{5} - \frac{6}{7}$

Taking LCM of 5 and 7,We got 35.

$\frac{3 \times 7 - 6 \times 5}{35} = x$

$\frac{21 - 30}{35} = x$

$\frac{ - 9}{35} = x$

Hence -9/35 should be added to 6/7 to get 3/5.