Question

Sutract -2/8 from 4/5

Answer 1

4/5-(-2/8)= 4/5+2/8 On taking LCM = 42/40= 21/20

Answer 2

Answer:

Subtract

(negative 2 over 8 −

2

8

) − 4 over 5

4

5

= negative 42 over 40−

42

40

Step 1 of 2: Subtract, sub-step a: Find common denominator.

Find common denominator

negative 2 over 8−

2

8

− 4 over 5

4

5

= −( 2 × 5 ) over ( 8 × 5 )

2 × 5

8 × 5

− ( 4 × 8 ) over ( 5 × 8 )

4 × 8

5 × 8

= negative 10 over 40−

10

40

− 32 over 40

32

40

40 is the least common multiple of denominators 8 and 5. Use it to convert to equivalent fractions with this common denominator.