Một ước của 31 mà gần 1 thì mình ko biết, bạn xem lại đề nhé!
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the greatest common factor of 42 and 30
The greatest common factor of m and n is 1
That the least common multiple of them ?
Ai làm nhanh nhất thì mk tick cho
J is a factor and a multiple of 25. What is J?
Answer: J =
Exer 1: There is a division with the quotient is 6 and the remainder is 3. The sum of dividend, divisor and remainder are 195. Find the dividend are divisor.
Exer 2: Prove that: Amoney three consecutive natural numbers, there is one only one the number which divisibles by 3.
Exer 3: Given natural number, n overline{1ab1}. Let m be the natural number which is written the opposite respectively of n. Prove that the different of n and m divisibles by 90.
Đọc tiếp
Exer 1: There is a division with the quotient is 6 and the remainder is 3. The sum of dividend, divisor and remainder are 195. Find the dividend are divisor.
Exer 2: Prove that: Amoney three consecutive natural numbers, there is one only one the number which divisibles by 3.
Exer 3: Given natural number, n = \(\overline{1ab1}\). Let m be the natural number which is written the opposite respectively of n. Prove that the different of n and m divisibles by 90.
1) Tính nhanh
a) 31+31+31+........31-16
giúp mk với nhé
\(Tính nhanh : 1 - 6/23 + 6/31 - 6/154 _________________________________ 5/2 - 15/23 - 15/31- 15 /154 \)
22x-1-1=31 => x=
So sánh 1/31 +' 1/32 + 1/33 + ... + 1/89 + 1/90 với 5/6
1\3+1\31 + 1\1\35 +1\37 + 1\47 + 1\53 + 1\61< 1\2