Question

Efectuati a) 5/16÷(3/4+1/2)= b) ( 9/2-1/3) ×6/10= c) 1/12÷(5/4-9/8)= e) 5/28×(5/3-4/15)= f) 4/29×(5/6+3/8)=

Answer 1

a) 5/16÷(3/4+1/2)=5/16 : (3+2  totul supra 4)= 5/16 : 5/4= 5/16 x 4/5=1/4

b) ( 9/2-1/3) ×6/10= (27-2 totul supra 6) x 6/10=  25/6 x 6/10= 25/10=5/2

c) 1/12÷(5/4-9/8)= 1/12 : ( 10-9 totul supra 8) = 1/12 : 1/8= 1/12 x 8= 2/3

e) 5/28×(5/3-4/15)= 5/28 x ( 25 -4 totul supra 15) = 5/28 x 21/15=1/4 ori 3/3=1/4

f) 4/29×(5/6+3/8)=4/29 x (20 +9 totul supra 24) =4/29  x 29/24= 4/24= 1/6