tentukan hasil operasi hitung campuran berikut!
a. -12 x (225+87) : (472-304)
= -14 x 312 : 168
= -4368 : 168
= -21
b. 1023 - (152 : 19) + (32 x (-8))
= 1023 - (8 + (-256))
= 1023 - 248
= 1271
c.
[tex](( \frac{5}{8} : \frac{2}{3} ) x \frac{1}{2} ) + \frac{3}{4} \\= (( \frac{5}{8} x \frac{3}{2} ) x \frac{1}{2} ) + \frac{3}{4} \\\\[/tex]
[tex]=\frac{15}{16} x \frac{1}{2} + \frac{3}{4}\\ = \frac{15}{32} + \frac{3}{4} \\=\frac{15+24}{32}\\= \frac{39}{32}[/tex]
d.
[tex](5x\frac{32}{100}) +(\frac{11}{4} : \frac{1}{2})\\= \frac{32}{20} + (\frac{11}{4} x 2)\\= \frac{32}{20} + \frac{22}{4}\\= \frac{32+110}{20}\\=\frac{142}{20}\\[/tex]
MAAF KALO SALAH :p
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