How do you solve #25/y=5/15#?

1 Answer
Jul 2, 2016

y = 75

Explanation:

When we have a fraction equal to another fraction. To solve we #color(blue)"cross-multiply"#

#rArr(5xxy)=(25xx15)rArr5y=25xx15#

divide both sides by 5

#(cancel(5)^1y)/cancel(5)^1=(25xxcancel(15)^3)/cancel(5)^1#

#rArry=25xx3=75#