Because if you think about it, a square number has two factors that are the same. For example, look at the number 16. Its factors are 1, 2, 4, 8, and 16. 1 and 16 go together, 2 and 8 go together, and then 4 gets paired up with another 4.
For Example 4/8 and 8/_: Multiply 8 and 8 (8*8=64) Divide 64 in 4 (64 divide by 4 = 16) 16 is your answer
The answer to the division is a number (8) that can be added to itself to make 16. The answer to the square root is a number (-4 or +4) that can be multiplied by itself to make 16.
4
Let the number be N, then (3/4 of N) - 4 = (1/2 of N) or (3N/4) - 4= N/2 or 3N - 16 = 2N or 3N - 2N = 16 N = 16 Verification: When 4 is subtracted from 3/4 of 16 you get (12 - 4) = 8 which is equal to 1/2 of 16 which is 8 also
The bottom number remains the same 1/4 + 3/4= 4/4 = 1 3/8 + 1/8 = 4/8 = 1/2 2/16 + 7/16 = 9/16
15 and 16. 15= 3*5. 3+5=8 16= 4*4. 4+4=8
Fractions are equivalent when you multiply (or divide) the top and bottom number by same amount. So 4/8 is same as 2/4 is same as 8/16 Therefore 4/9 is same as 8/16 is same as 40/90 ....
Because if you think about it, a square number has two factors that are the same. For example, look at the number 16. Its factors are 1, 2, 4, 8, and 16. 1 and 16 go together, 2 and 8 go together, and then 4 gets paired up with another 4.
8
The factors of 16 are: 1, 2, 4, 8, 16.
The next number is 4.... Starting at 22, every alternate number is half the previous one. The same applies to 16.
Because if you think about it, a square number has two factors that are the same. For example, look at the number 16. Its factors are 1, 2, 4, 8, and 16. 1 and 16 go together, 2 and 8 go together, and then 4 gets paired up with another 4.
16 = 2, 4, 8 24 = 2, 3, 4, 6, 8, 12 32 = 2, 4, 8, 16
4
24
I assume you mean subtracting a fraction from another fraction. In this case, you need to multiply both the top and bottom number by another number so both fractions have the same bottom number. Then you can subtract the top numbers and simplify if needed. (ex. 7/8 - 1/2 = ? ...... 7/8 - 1/2(4/4) = ? ...... 7/8 - 4/8 = 3/8) If you can't just multiply one of fractions to get the same bottom number as the other fraction, multiply them both by different numbers until you get the same bottom number. (ex. You could use the same equation as in the first example, but make the bottom number 16 instead, just as an example..... 7/8 - 1/2 = ? ...... 7/8(2/2) - 1/2(8/8) = ? ...... 14/16 - 8/16 = 6/16 ...... Simplify 6/16: 6/16 take 2 out of top and bottom both = 3/8).