tolong jawab a.1+5/12 b1+8/12 c.1+15/20 adelia membeli pita dengan panjang 3/5m bu ajeng membeli pita yg sm4/5m berapa m jumblah pita yg dibeli adelia dan bu. a

a.) 1 + 5/12 = 12/12+5/12 = 17/12= 1 5/12
b.) 1 + 8/12 = 12/12+8/12 = 20/12 = 1 8/12 = 1 /3
c.)1 + 15/20 = 20/20 + 15/20 = 35/20 = 1 15/20 = 1 3/4

3/5m + 4/5m = 7/5m = 1 2/5m