tolong bantu jawab entar dikumpulin

2/15-1/2+3/10=4/30-15/30+9/30
=-11/30+9/30
=-2/30
=-1/15

nb:tanda(-) nya di luruskan sama tanda per nya ya

2/15 - 1/2 + 3/10
= 4/30 - 15/30 + 9/30
= - 11/30 + 9/30
= - 2/30
= - 1/15