Question

(+2/3 x) - (-3/2 x)
(-3/4y) - (+1/2y)
(+2/5m) - (+2/3m)

Answer 1

A)

= (+2/3 x) - (-3/2 x)

= 2x/3 + 3x/2

MMC = 6

3,2: 2

3,1:3

1,1 = 2.3 = 6

= (2.2x + 3.3x)/6

= (4x + 9x)/6

= 13x/6

B)

= (-3/4y) - (+1/2y)

= -3y/4 - y/2

MMC = 4

4,2: 2

2,1: 2

1,1 = 2.2 = 4

= (-3y - 2y)/4

= - 5y/4

c)

= (+2/5m) - (+2/3m)

MMC (5,3) = 15

= 2m/5 - 2m/3

= (3.2m - 5.2m)/15

= (6m - 10m)/15

= - 4m/15