how to reduce 18/81 to lowest term by common factor method
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Answered by
2
hiii mate
Calculate the greatest (highest) common factor (divisor).
Integer numbers prime factorization:
18 = 2 × 3²;
81 = 3⁴;
Take all the common prime factors, by the lowest exponents.Greatest (highest) common factor (divisor), gcf, gcd:
gcf, gcd (18; 81) = 3² = 9;
Divide fraction's both numerator and denominator by their greatest common factor (divisor), gcf (gcd).
18/81 =
(2 × 3²)/3⁴ =
((2 × 3²) ÷ 3²) / (3⁴ ÷ 3²)
=2/3²
=2/9
Rewrite the end result:
2 ÷ 9 = 0.222222222222 as a decimal number.
Calculate the greatest (highest) common factor (divisor).
Integer numbers prime factorization:
18 = 2 × 3²;
81 = 3⁴;
Take all the common prime factors, by the lowest exponents.Greatest (highest) common factor (divisor), gcf, gcd:
gcf, gcd (18; 81) = 3² = 9;
Divide fraction's both numerator and denominator by their greatest common factor (divisor), gcf (gcd).
18/81 =
(2 × 3²)/3⁴ =
((2 × 3²) ÷ 3²) / (3⁴ ÷ 3²)
=2/3²
=2/9
Rewrite the end result:
2 ÷ 9 = 0.222222222222 as a decimal number.
Answered by
3
They both have common factor as 3 so 18÷3=6
81÷3=27
again they have 3 as factor so
6÷3=2
27÷3=9
amswer is 2/9
81÷3=27
again they have 3 as factor so
6÷3=2
27÷3=9
amswer is 2/9
suyash1510:
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