Tentukan hasilnya dalam bentuk desimal a2,43 + 0,754 b4,2 - 45% c4/5 × 65 % d3/7 : 5/12

A.) 2,43+0,754=3.184
B.)4,2-45%=42/10-45/100
= 42×10/10×10
= 420/100-45/100
= 375/100
C.)4/5×65%=4/5×65/100
=260/500=130/250=65/145=13/28
D.)3/7:5/12=3/7×12/5=36/35= 1 /1 1/35
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