Answer:
13/7
Step-by-step explanation:
Method 1 :
1/2*3/7-5/7*1/2+2 = (3/14)- (5/14) + 2
= -2/14 + 2
= -2/14 + 28/14
= 26/14
= 13/7
Method 2 :
1/2*3/7-5/7*1/2+2 = (1/2) [3/7 - 5/7] + 2
= (1/2)(-2/7) + 2
= (-1/7) + 14/7
