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2 years ago

(GIVING BRAINLIEST AND EXTRA POINTS ON THIS ONE!! PLS HELP!!!!!)

Mathematics

2 answers:

denis23 [38]2 years ago

6 0

Answer:

Step-by-step explanation:

3 1/5 x 7/1

(3 x 5) + 1 = 16/5

16/5 x 7/1 = 112/5.

112 ÷ 5 = 22 2/5

so its B.

Oksi-84 [34.3K]2 years ago

5 0

Answer:

22 2/5, twenty two and two fifths, B.

Step-by-step explanation:

7 * 3 1/5

To make it simpler, convert 3 1/5 into a mixed number.

3 1/5 = 15/5 + 1/5 = 16/5

Now, it's 7 * 16/5

Next, to prevent confusion, convert 7 to a mixed fraction as well.

7 = 7/1 (also known as a rational number.)

now it's 7/1 * 16/5

Simply multiply 7 * 16 and 1 * 5, which results in

112/5

The answer is a mixed number, and you want to simplify it as much as possible,

112/5 is 5 going into 112 with it's highest factor.

5*22 is 110, which is the highest factor that can go into 112.

now 22 can be the whole number, and the remaining numbers in the part over whole fraction stays put. Basically, you subtract the numerator of the mixed number with the highest factor that the denominator can fit into the numerator. (112-110 = 2)

So, the answer is 22 2/5, B. (cannot be further simplified.)

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