Question

subtract ( 2/3a - 4/5b +3/5c) and (5/2a + 7/4b - 5/6c )​

Answer 1

Answer:

-11/6 a + 19/20 b -7/30c

Step-by-step explanation:

2/3a - 4/5b + 3/5c

- 5/2a + 7/4b - 5/6c

2/3a - 5/2a = LCM :- 6

2/3 × 2 = 4/6

5/2 × 3 = 15/6

4/6 - 15/6 = -11/6 a

-4/5b + 7/4b = LCM:- 20

4/5 × 4 = 16/20

7/4 × 5 = 35/20

-16/20 +35/20 = 19/20 b

3/5c - 5/6c = LCM :- 30

3/5 × 6 =18/30

5/6 × 5 = 25/30

18/30 - 25/30 = -7/30 c