Fun with Fractions

Algebra Level 1

For what value of N N is

2 3 = N 15 ? \frac{ 2}{3} = \frac {N } { 15}?


The answer is 10.

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Arron Kau by Arron Kau

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10 solutions

Anna Pindoy
Dec 3, 2013

Divide the denominator in the right side by the denominator on the left. so 15 divided by 3 is equals to 5. Now, multiply 5 by the given numerator. 5 times 2 is equals to 10. So, N=10.

2 Helpful 0 Interesting 0 Brilliant 0 Confused

good

Carljay Vincent Villafranca Gabilagon - 7 years, 3 months ago
Gillian Howlett
Dec 2, 2013

you can cross multiply because there is an equals sign. 2 times 15 is 30, then divided by 3 is 10, which is the answer.

1 Helpful 0 Interesting 0 Brilliant 0 Confused
Dhaval Shukla
Dec 2, 2013

Answer = 2/3 = N/15 (2*15)/3 = N So, N = 10

1 Helpful 0 Interesting 0 Brilliant 0 Confused

What's important to note here is the sheer mystique in the ways to confront this beast. Any sharp eye may instantly cross-multiply the proportions in order to isolate the variable N. Another rendition is to intricately draw "the pizza" and cut it so that the slices look about equal. A brilliant cultivation of the mind, the satisfactory "10" is what we are looking for. Appreciate how difficult problems have simple solutions.

0 Helpful 0 Interesting 0 Brilliant 0 Confused

Your name is really cool, spock weak hyper charge

Razzi Masroor - 4 years, 7 months ago
Ahmed Schamyl
Dec 14, 2013

3N=30
or, N=30/3 or, N= 10

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Ritika Ganguly
Dec 7, 2013

2/3=N/15

by cross multiplying..

15 2=3 N

30=3N

N=10

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Vighnesh Raut
Dec 4, 2013

2/3 = N/15 So, (2x15)/3 = N so, 30/3=N Hence, N=10.

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Dewayne Gunter
Dec 2, 2013

2/3 = n/15 3 5 = 15 so simply 2 5 = 10 N=10

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Dil Nur Jahan
Dec 1, 2013

here, 2/3 = N/15 N= 2 * 15/3 N= 2*5 =10

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Ankit Surana
Dec 1, 2013

N=30/3=10

0 Helpful 0 Interesting 0 Brilliant 0 Confused

2.15=N.3 =N10

Carljay Vincent Villafranca Gabilagon - 7 years, 3 months ago

n=30/10

Prateek Gilani - 7 years, 6 months ago

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