Question

Va roggg!!!!!!!!!!!!!!

Answer 1

Răspuns:

Explicație pas cu pas:

a) 5/21 : 15/28 = 5/21 ·28/15 = (5·28)/(21·15) = 4/9

b) 3 4/17 : 55/51 = (3·17+4)/17 · 51/55 = 55/17 ·51/55 = 51/17 = 3

c) (1/7 : 3/5): (3/7 ·5/6) = (1/7 ·5/3) : (15/42) = 5/21 ·42/15 = 2/3

d) 72/24 : 32/12 = 72/24 ·12/32 = 72/64⁽⁸ = 9/8

e) 35/108 : 385/324 = 35/108 · 324/385 = (35·324)/(108·385) =

= 3/11

f) 2 19/49 : 5 4/7 = (2·49+19)/49 : (5·7+4)/7 =

=  117/49 : 39/7 = 117/49 · 7/39 = 117·7/(49·39) = 3/7

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a) 5/7 :15/42 = 5/7 · 42/15 = (5·42)/(7·15) = 6/3 = 2

b) 17/150 : 34/300 = 17/150 · 300/34 = (17·300)/(150·34) = 2/2 = 1

c) 11 : 20 1/6 = 11 : (20·6+1)/6 = 11: 121/6 = 11·6/121 = 6/11