Express 3/4, 7/16,and 5/8 with the LCD

1 answer:

4 0

The LCD (lowest common denominator) is the lowest common denominator of two or more fractions.

4 = 2²
16 = 2⁴
8 = 2³

Take common and non-common factors with highest exponent.

So LCD = 16

The new dneominator of all fractions is 16. Divide this number for the original denominators and multiply for numerator...

16/4 = 4
4*3 = 12

3/4 = 12/16

16/16 = 1
1*7 = 7

7/16 = 7/16

16/8 = 2
2*5 = 10

5/8 = 10/16

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Solve Y/-6 + 5 = 9<br><br> It’s Algebra 1

hammer [34]

Answer:

Y = - 24

Step-by-step explanation:

Y/-6 +5=9 /*6 (Multiply the whole equation by the number 6 to eliminate the fraction. That is, you multiply each member of the equation by 6 because 6 is in the denominator of the fraction.
$\frac{Y}{-6} *6=-Y$ , $5*6=30$ , $9*6=54$

-Y + 30 = 54
-Y = 54-30
-Y=24 /*(-1)
Y= -24