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This math problem falls under the category of solving a two-step Equation with Signed Fractions. The LCD I got for 5,4, and 3 was 15 and the final answer that got me was -1/4. But in the resolved problem they got 60 as the LCD What am I missing or...
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MightyLion
22-25, M
3 replies 90 views Mar 14, 2023
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fakable Best Comment
LCD = 60

1/5=12/60
7/4=105/60
2/3=40/60
+ 1 · Reply · Translate · Mar 14, 2023
MightyLion · 22-25, M
@fakable I figured it out, I think I was looking for LCD instead of LCM (least common multiple), thank you for trying to help me.
+ 1 · Reply · Translate · Mar 14, 2023
Northwest · M
Common multiples are the multiples that are common between a given set of numbers, and the least common denominator is the lowest common multiple of the denominators. In this case, if you have 5, 4 and 3, the LCD is going to be 5x4x3 = 60. The illustration you posted explains it.
+ 0 · Reply · Translate · Mar 14, 2023
 
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