This is the picture I am not very good at proofs but hopefully someone can solve it.
Answer:
63
Step-by-step explanation:
15 x 4.2
15 x 42 (get rid of the decimal by moving it one to the right)
15 x 42 = 630
630 = 63.0 (put the decimal back in by placing it one spot to the left)
Answer: 63
hope this helps :)
Neither one has eaten a greater amount, because 1/4 and 2/8 are equal to each other. You know this because when you divide the numerator and the denominator of 2/8 by 2, you get 1/4, which is the exact same thing. The only way the amounts would vary is if the size of one candy bar is greater than the other.
Search up on the web GCF Calculator

if you want to multiply mixed numbers you need to turn them into improper fractions