Answer:
- 11 / 15
Step-by-step explanation:
x = - 2
y = - 1 / 5
1 / 3 + x . z
= 1 / 3 + ( - 2 ) . ( - 1 / 5 )
= 1 / 3 + ( - 2 . - 1 ) / 5
= 1 / 3 + 2 / 5
1 / 3
= ( 1 / 3 ) x ( 5 / 5 )
= ( 1 x 5 ) / ( 3 x 5 )
= 5 / 15
2 / 5
= ( 2 / 5 ) x ( 3 / 3 )
= ( 2 x 3 ) / ( 5 x 3 )
= 6 / 15
1 / 3 + 2 / 5
= 5 / 15 + 6 / 15
= ( 5 + 6 ) / 15
= 11 / 15
