# Math Help - Fractions Reviews

1. ## Fractions Reviews

just having trouble understanding some things, no doubt you guys know it all...

these are steps to make equivalent fractions, i don't understand this bit...
• Form equivalent fractions by using the LCD
• 13/4 = 65/20 and 3/5 = 12/20

how is this possible, i'm not seeing where they got the 65

2. $13/4=65/20$

They multiplied top and bottom by $5$ -

$(13/4)(5/5)=(13.5)/(4.5)=65/20$

When you multiply the top and bottom of a fraction by the same number, it is like multiplying it by $1$ and so it is still equivalent to what you started with.