Rewriting decimals as fractions challenge

Question

Express 7.71 as a mixed number.

Answer 1

7.71 = 7 71/100 or 771/100

7 71/100 is an integer plus a proper fraction

771/100 is an improper fraction

7.71/1.00 = 771/100, just move the decimal over twice in both numerator and denominator

prime factors of 100 are 5,5, 2 and 2, but 771 while divisible by 3 is not divisible by 5 or 2, so 771/100 cannot be reduced further to get a smaller integer over another integer.