tolonggg di jawabbbb yaaa

lakukan pengurangan
2/15 - 1/2 + 3/10
(2/15-1/2)+3/10
4/30 - 15/30 + 3/10
-11/30 + 3/10
-11/30 + 9/30
-2/30 = -1/15

semoga membantu ^^