Question

Using appropriate properties find.(i) -2/3 × 3/5 + 5/2 – 3/5 × 1/6

Answer 1

Answer:

Use BODMAS

Breaking up the equation in parts

-2/3x3/5=-6/15

3/5x1/6=3/30

-6/15+5/2-3/30

[LCM=30] - 12/30+75/30=63/30

63/30-3/30=60/30

=>2/1=2

Answer 2

Answer:

= 2

Step-by-step explanation:

-2/3 × 3/5 + 5/2 – 3/5 × 1/6

= -2/3 × 3/5– 3/5 × 1/6+ 5/2 (by commutativity)

= 3/5 (-2/3 – 1/6)+ 5/2

= 3/5 ((- 4 – 1)/6)+ 5/2

= 3/5 ((–5)/6)+ 5/2 (by distributivity)

= – 15 /30 + 5/2

= – 1 /2 + 5/2

= 4/2

= 2