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Pavel [41]
3 years ago
6

Are 12/7 and 36/21 proportional

Mathematics
2 answers:
anastassius [24]3 years ago
5 0

Answer:

Step-by-step explanation:

Cross multiply:

12 * 21 = 7 * 36

Simplifying

12 * 21 = 7 * 36

Multiply 12 * 21

252 = 7 * 36

Multiply 7 * 36

252 = 252

Add '-252' to each side of the equation.

252 + -252 = 252 + -252

Combine like terms: 252 + -252 = 0

0 = 252 + -252

Combine like terms: 252 + -252 = 0

0 = 0

Solving

0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

(hope this helps can i plz have brainlist :D hehe)

sertanlavr [38]3 years ago
5 0

Simplify 36/21 by dividing each number by 3:

36/21 /3 = 12/7

This is the same as the first fraction so yes they are proportional.

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