Răspuns :
a/4 = b/5 => k
a = 4k
b = 5k
5k .............. 100 %
4k .............. x %
x = 4 × 100 ÷ 5 = 400 ÷ 5 = 80%
a/4 = b/5 = k
a = 4k ; b = 5k
5k.......................... 100%
4k.......................... x %
x = (4·•100) : 5 = 400 : 5 = 80%
a/4 = b/5 => k
a = 4k
b = 5k
5k .............. 100 %
4k .............. x %
x = 4 × 100 ÷ 5 = 400 ÷ 5 = 80%
a/4 = b/5 = k
a = 4k ; b = 5k
5k.......................... 100%
4k.......................... x %
x = (4·•100) : 5 = 400 : 5 = 80%