It is: 457/21 = 21 with a remainder of 16
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21/7 so you will divide 7 into 21; 7/21= 3 the quotient is 3, the remainder is 0, the divisor is 7; answer is ...3 0/7 If the question was write 8/5 as a mixed number you would divide 5 into 8. 5 is the divisor, 1 is the quotient, 3 is the remainder. The answer to that is 1 3/5. Remainder Quotient Divisor 1 3/5.
To find the number, we need to consider the remainders when the number is divided by 5 and 4. Let's denote the number as x. From the information given, we have two equations: x ≡ 1 (mod 5) and x ≡ 2 (mod 4). By solving these congruences simultaneously using the Chinese Remainder Theorem, we find that x ≡ 21 (mod 20). Therefore, the number you are thinking of is 21.