Find the difference:
$$1 / 2 - 3 / 8$$
Given
$$1 / 2 - 3 / 8$$
(Refer image)
LCM of 2 and 8 $$=(2\times 2\times 2)=8$$
Now, $$1 / 2 =(1\times 4)/(2\times 4)=4 / 8$$
$$3 / 8=(3\times 1)/(8\times 1)= 3 / 8$$
$$\therefore 1 / 2-3 / 8=4 / 8 - 3/ 8$$
$$=(4 - 3)/8$$
$$=1 / 8$$
Hence, $$1 / 2 - 3 / 8 =1 / 8$$