Q: WHAT IS 21 over 28 divide by what number and gives us 7 over 8?

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take 7 then divide by 11 get an answer then divide that answer by 21

20 and 1 Seems to be a common problem. Add the sum to the difference and divide by 2 gives one number. Then start over and subtract the smaller of the two givens from the larger and then divide by 2 to get the other number. So here you have (21+19)/2 and (21-19)/2

The LCM of 60 and 21 is 420

divide both by 484/108 = 21/27divide both by 321/27 = 7/9seven ninths

Multiply the numerator and the denominator by 2 to get 42 over 100, then divide 42 into 100 to get 0.42.

Divide 1 by the number: 1/21 = 0.048 (rounded).

The mixed number of 21 over 9 is 21/3

21 over 10 as a mixed number is 21/10

21

84*21=1746/100=17.64

Yes it is in simplest form, because there is no number that can divide ten or either twenty-one.

divide both top and bottom by the same number (I chose you Seven!) 3/5

21.

21 over 4 does not equate to a whole number.

1 and 3.

21 over 24 because if you divid 35 by 50 you get .7. And when you divide 21 by 24 you get .875.

Yes, 3/21 = 1/7 (divide by 3)

divide by 21

21 over 20 as a mixed number = 11/20

The mixed number for 21 over 8 is 25/8

The number is 21. 21 ÷ 3 = 7 7 - 3 = 4

To convert an improper fraction to a mixed number, divide the denominator into the numerator. The answer is the whole number. Put any remainder over the original denominator to create the fraction part. 21/4 = 5 and 1/4

Try opposite of multiplying Over. For example, 21 over 3 or 21/3 is equal to 7

Since 21 fails the divide by two test it would seem to be odd.

You just divide it by 21 and if there is no remainder then it went in evenly.