Rewrite subtraction equation with whole number and fraction part separated

5 +

3

7

- 3 -

1

8

Solve the whole number parts

5 - 3 = 2

Now, solve the fraction parts

3

7

-

1

8

Least Common Denominator (LCD) of 7 and 8 is 56.

Now, we have to make sure both fractions have the same new denominator 56.

You can write fraction

3

7

as

3x8

7x8

=

24

56

You can write fraction

1

8

as

1x7

8x7

=

7

56

Now, both fractions have same denominator and we are ready to subtract

24

56

-

7

56

=

24-7

56

=

17

56

Combine whole numbers and fraction parts

2 +

17

56

= 2

17

56