Question

1. Which of the following is NOT a proportion?
a. 1:2 = 4:8
b. 5:3 = 10:6
C. 7/10=21/30
D. 6/14 = 12/26
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Answer 1

Answer:

D is not a proportion.

Step-by-step explanation:

a. 4/8 =1/2

b. 10/6=5/3

c. 21/30=7/10

hope it helps.

Answer 2

D. 6/14=12/26

REASON:-

$\sf LHS=\frac{6}{14} = \frac{3}{7}$

$\sf RHS = \frac{12}{26} = \frac{6}{13}$

Since LHS is Not Equal to RHS.Its is not a proportion.