Question

COMMON FACTORS AND COMMON MULTIPLES
EXERCISE 6.7
1. Find the highest number which divides 27 and 45 exactly.​

Answer 1

$\huge\bold\color{blue}{\underbrace{\overbrace{\mathfrak{\color{red}{✍Answer⭐}}}}}$

H.C.F of both the numbers are :-

$\mathtt{27 = \underline{ 3×3}×3}$

$\mathtt{45 ={ \underline{ 3 \times 3} \times 5}}$

$\color{orange}{\mathtt{In \: \: both \: \: of \: \: them \: \: 3× 3 \: \: is \: \: common.}}$

$\color{green}{ \boxed{ \bold{ \mathtt \therefore3 \times 3 = 9}}}$

9 is highest number which divides 27 and 45 exactly.