Question

valoarea lui a/b=2/5.
a) a/6b=?
b) 5a/b=?
c) 11a/11b=?
d) 12a/15b=?​

Answer 1

a/b=2/5 => a=2 si b=5

a) a/6b=2/6×5=2/30=1/15

b) 5a/b=5×2/5=2

c) 11a/11b=a/b=2/5

d) 12a/15b=12×2/15×5=24/75

Simplificam cu 3

=8/25

Answer 2

a) a/6b=1/6×a/b=2/5×1/6=1/15

b) 5a/b=5× a/b=5×2/5=2

c) 11a/11b=a/b=2/5

d) 12a/15b=4a/5b= 4/5×a/b=4/5×2/5=8/25