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# Comparing fractions 1 (unlike denominators)

Sal compares fractions by finding a common denominator.

## Want to join the conversation?

• 1/3 and 1/2 which is greater, less or equal
• 1/3 is less than 1/2 because if you had 2 rectangles exactly the same size and divide 1 of the rectangle in halves and the other in thirds, you will see which one is greater. You can also say 1/3 is less that 1/2 by writing 1/3 < 1/2.
• I do not like fractons I lerard this in 2ed grade im in 4th grade
• Comparing Fractions used to be so hard for me but NOW I GET IT! IT ALL MAKES SENSE NOW! 🤣🤣 Idk why it used to be so hard.🤔🤔 THANK YOU SO MUCH KHANACADEMY!! I AM REALLY HAPPY! (Oh yeah umm I just started khanacademy so, if you have any tips please tell me. Thank you if you do! 😊😊)
• can stacking bench mark fractions work too?
(1 vote)
• how is 2/4 greater than 2/6?
(1 vote)
• because 2/4 is the same as half and 2/6 is smaller than half so yeah dionskee
(1 vote)
• I'm just making sure but, can negative numbers be fractions and can you still add them?
• Absolutely!

Take the fraction -5/3. What if we want to add 3/5?

First, get the fractions to have common denominators. In this case, the LCD is 15, so our two fractions become -25/15 and 9/15. -25 + 9 = -16, so our resulting fraction will be -16/15.
• What ways can help me find the common denominator?
• how do you compare three fractions