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Let's see if they are or no. 6/10 = 15/ 25? Let's suppose that the are proportional. Then,cross multiply: 6 x 25 = 10 x 15 ? 150 = 150 True. Thus 6/10 = 15/25
15 x 2 3 x 10 10 x 3 2 x 15 6 x 5 5 x 6
Ah, what a happy little math problem we have here! To find two fifths of 15, we can first find one fifth by dividing 15 by 5, which is 3. Then, we can multiply 3 by 2 to find two fifths, which equals 6. Isn't it wonderful how numbers can come together to create something beautiful?