Hitunglah sederhanakanlah 1) 9/a + 7/b 2) 3/p - 5/p+3 3) 2a/a+4 + 3a/a-3 Tolong di jawab ya bsk dikumpul???

1) 9/a + 7/b

= (9b +7a)/ ab

2) 3/p - 5/(p+3)

= [3 (p+3) -5p]/(p (p+3))

=(3p+9 -5p) /(p" +3p)

= (9-2p) /(p"+3p)

3) 2a/(a+4) + 3a/(a-3)

=[2a (a-3) + 3a (a+4)] /[(a+4) (a-3)]

=[(2a" -6a)+ (3a" +12a)] /(a" +a -12)

=(5a" +6a)/ (a"+a-12)

Keterangan tanda " = kuadrat/pangkat2