hasil dari a. 7,85 + 3, 701= b. 8,25 - 1 1/2= c. 5/12 -0,2 = d. 50% + 7,5 = tolong ya kak pr besok pake cara ya

a) 7,85+3,701 = 7,85+3,701 = 11,551 = 11,6
b) 8,25-1 1/2 = 8,25-3/2 = 8,25-1,5 = 6,75
c) 5/12-0,2 = 5/12-2/10 = 25/60-12/60 = 13/60 =0,2167=0,217
d) 50%+7,5 = 0,5+7,5 = 8