bonjour
A) (5/3)+(7/18)
3*6=18
5/3=5*6/3*6=30/18
A=(30/18)+(7/18)
A=(30+7)/18
A=37/18
B) (10/4)-(41/12)
4*3=12
10/4=(10*3)/(4*3)=30/12
B=(30/12)-(41/12)
B=(30-41)/12
B=-11/12
C(8/3)x(7/9)
C=(8*7)/(3*9)=c=56/27
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bonjour
A) (5/3)+(7/18)
3*6=18
5/3=5*6/3*6=30/18
A=(30/18)+(7/18)
A=(30+7)/18
A=37/18
B) (10/4)-(41/12)
4*3=12
10/4=(10*3)/(4*3)=30/12
B=(30/12)-(41/12)
B=(30-41)/12
B=-11/12
C(8/3)x(7/9)
C=(8*7)/(3*9)=c=56/27