I think you're referring to the notation for a repeating decimal.
So it is 175.877777.... Well 0.777777.... is 7/9, and 0.87777 - 0.77777 = 0.1 = 1/10. so it is 175 + 7/9 + 1/10 which is 175 + 70/90 + 9/90 = 175 79/90
It is 0.7142857... with the underlined string repeating.
7/100
To find a common denominator for 7 and 8, we need to find the least common multiple (LCM) of the two numbers, which is 56. Therefore, a proper fraction with a denominator that is common to 7 and 8 would be any fraction with 56 as the denominator, such as 3/56 or 7/56.
.875 = 7/8
7/16
7 / 100
The answer depends on what string is repeating. It is not clear from the question whether the recurring fraction is meant to be0.428571428571... or0.4285712857128571... or0.428571285718571... or0.428571571571... or0.4285717171...0.4285711111...where the underlined strings are repeating.
1/6 + 1/7 needs to have common denominators to be successfully added. 6 and 7 are most common multiples of 42. We can achieve the common denominator by multiplying the fraction by the denominator of the other fraction. 1/6 (7) + 1/7 (6) = 7/42 + 6/42 = 13/42 which is the simplest form of the fraction.
If you mean the highest common factor then it is 7
Start by changing to a fraction 7/100 Since there is no common divisor (dividing number) that's it Easy one!
5.8571
1.1429