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3 years ago

I Need help on my sis homework pls

Mathematics

1 answer:

lozanna [386]3 years ago

3 0

Answer:

Step-by-step explanation:

49 ÷ 7 = 7

0.49 ÷ 0.7 = 7

0.049 ÷ 0.07 = 7

(sorry it's not very thorough, hope it helps)

edit: omg I put 3 instead of 7. oops

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masha68 [24]

Answer:

5/7

Step-by-step explanation:

A common factor of 8 can be canceled from numerator and denominator.

40/56 = (5·8)/(7·8) = (5/7)·(8/8) = (5/7)·1 = 5/7

_____

Since you know your multiplication tables, you know that 40 and 56 are both multiples of 8.

If you don't know your multiplication tables, you can find the greatest common divisor (GCD) of the two numbers and divide each by that. The GCD can be found using Euclid's algorithm. For that, you divide the larger by the smaller and use the remainder as the new smaller number. The original smaller number is now the larger number. For these numbers, that looks like ...

56 ÷ 40 = 1 r 16

40 ÷ 16 = 2 r 8

16 ÷ 8 = 2 r 0 . . . . . the zero remainder signals that the divisor (8) is the GCD

Now, your fraction is ...

(40/8) / (56/8) = 5/7

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Answer:

Step-by-step explanation:

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