Question

Tooolong kak,nanti mau dinilai,please pakai caranya!!!!!!!!!!!!!!

Answer 1

A + b = 5 7/12 = 67/12
a - b = 1 11/12 = 23/12
___________________ _
2b = 44/12
b = 22/12 = 11/6 atau 1 5/6
a = 45/12 atau 3 3/4
Jawaban A

3 1/4 + 10 1/6 - 15 2/3
= 53/4 + 61/6 - 47/3
= (159 + 122 - 188)/3
= 93/3