What is 66 + 33

What is 66 + 33

99 ~ ~ ~ ha ha

Simplified fraction: square of m-2m + 1 / square of m-1-m / M + 1

Square of m-2m + 1 / m-1-m / M + 1
=（m-1）²/(m+1)(m-1)-m/(m+1)
=(m-1)/(m+1)-m/(m+1)
=-1/(m+1)
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(10) when x =, the fraction 1 / X squared-16 is meaningful, (2) calculate 1 / r1-1 / R2 (3) simplify m + 3 / m squared-9-3 / 3-m

When x ≠± 4, the fraction 1 / X squared-16 is significant, 1 / r1-1 / r2 = (r2-r1) / R1 * R2 m + 3 / m squared-9-3 / 3-m = (M + 3) / (M + 3) (M-3) + 3 / (M-3) = 1 / (M + 3) + 3 / (M + 3) = 4 / (M + 3)

1. (9 / 10 - 4 / 5 × 5 / 8) divide by 5 / 8, can we simply calculate processing a batch of parts, Party A and Party B cooperate for 20 days
2. To process a batch of parts, Party A and Party B can cooperate for 20 days. Now, Party A will do it for 16 days first, and then Party B will do it for 12 days, which is exactly 11 / 15 of this batch of parts. How many days will it take for Party B to complete it alone

Suppose the total quantity is 1, Party A completes x every day and Party B completes y every day
We get: 20 (x + y) = 1, 16x + 12Y = 11 out of 15 equations
Just work out the answer

(second power of 2 / 1ab - second power of 3 / 1a b-6ab) × (- 6ab)=

^It means power
(second power of 2 / 1ab - second power of 3 / 1a b-6ab) × (- 6ab)
=(1/2 ab^2-1/3 a^2b- 6ab)×(-6ab)
=(-1/2×6)a^(1+1)b^(2+1)+(1/3×6)a^(2+1)b^(1+1)+(6×6)a^(1+1)b^(1+1)
=-3a^2b^3+2a^3b^2+36a^2b^2
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30 to 120, 1 to 3 / 4, 10 to 6, 0.1, 3 to 2, 10 to 2, 2.5 to 6, 0.5 to 3.2, 25 to 5 / 6, 4 to 3 to 3 / 2
These are all simplification ratio. It's better to write the answer directly

One to four
Four to three
Six to one
1:15
5 to 12
5 to 32
30 to 1
One to two
Method: about the simplification ratio, just multiply a number on both sides at the same time, so that both numbers are integers and the greatest common factor of the two numbers is 1. If you think it is more difficult, you can practice more questions

(1 / 8 + 1 / 6) multiply by 48 = simple calculation

(1 / 8 + 1 / 6) times 48 = 1 / 8 times 48 + 1 / 6 times 48 = 6 + 8 = 14

How to calculate 156 * 157157-157 * 156156

156*157157-157*156156
=156*(157*1001)-157*(156*1001)
=156*157*1001-157*156*1001
=0

1 and 5 out of 12 and 7 and 4 out of 5
Write down the general division process clearly so that I can understand it. It will be done today or tomorrow,

1 / 12 5 = 1 + 5 / 12 = 12 / 12 + 5 / 12 = 17 / 12 = 85 / 60
7 and 5 / 4 = 7 + 4 / 5 = 35 / 5 + 4 / 5 = 39 / 5 = 468 / 60

3 out of 1 and 8, 5 out of 1 and 6 and 33 out of 12

Common denominator = 24
3 out of 1 and 8 = 9 out of 1 and 24
5 out of 1 and 6 = 20 out of 1 and 24
33 out of 12 = 66 out of 24