Question

answer this question for 50 points​

Answer 1

Answer:

i) 3/4 - 4/5

LCM = 20

[ 3 × 5 / 4 × 5 ] - [ 4 × 4 / 5 × 4 ]

[ 15/20 ] - [ 16/20 ]

= -1/20

ii) -3 - 3/7

assume -3 as -3/1

-3/1 - 3/7

LCM = 7

[ -3 × 7 / 1 × 7 ] - 3/7

[ -21 / 7 ] - 3/7

= -18/7

iii) 7/24 -19/36

LCM = 72

[ 7 × 3 / 24 × 3 ] - [ 19 × 2 / 36 × 2 ]

balance answer I will complete after some time

Answer 2

hope it helps you...........