Question

7 upon 8 - 1 upon 4 with lcm 8 answer​

Answer 1

Answer:

First, make the denominators the same.

Multiply numerator and denominator of 2/5 and 1/4 by 4 and 5 respectively.

2/5× 4/4 = 8/20

1/4 x 5/5 = 5/20

Now do the subtractions:

8/20 − 5/20 =3/20

b. Subtract 3/8 from 7/8

Solution

7/8 – 3/8

= (7 – 3)/8

= 1/2