5 i 1/7+ 1 i 2/5-(3-2 i 1/10)=

5 i 1/7+ 1 i 2/5-(3-2 i 1/10)= 5 i 5/35 + 1 14/35 - (2 i 10/10 - 2 i 1/10)= 6 i 19/35 - 9/10 = 6 i 190/350 - 315/350= 5 i 540/350 - 315/350= 5 i 225/350 = 5 i 9/14

5 1/7+ 1 2/5-(3-2 1/10)= =5 5/35 + 1 14/35 - (2 10/10 - 2 1/10)= =6 19/35 - 9/10 = =6 190/350 - 315/350= =5 540/350 - 315/350= =5 225/350 = =5 9/14