15. The numbers 1120, 1276 and 1450, written as the products of their prime factors, are
1120 = 25 x 5 x 7, 1276 = 22 x 11 x 29 and
1450 = 2 x 52 x 29. Hence, find the smallest
non-zero whole number that is divisible by 1120,
1276 and 1450.​

answer:

idk

step-by-step explanation:

proportions are fractions that equal to each other. so if two fractions are the same, they are proportional.

let's check the answers to see if they are proportional.

question a is not proportional because you can't turn 1.5/3 to 3/9. if you try to multiply 1.5/3 by 2 or 3, you wont get 3/9. it's impossible to make the fractions the same.

question b is not proportional because you can't turn 22/33 to 4/6. 33 can't go into 6.

question c is proportional because when you multiply 2 and 3 by 71, you would get 142/213, and those fractions equal to each other

question d is proportional because when you divide 14 and 7 by 2, you would end up with 7/3.5, and those fractions equal to each other.