❤️Math Follow Me and Practice everyday 💯
🤔️Topic today：The Greatest Common Factor and the Least Common Multiple最大公約數GCF和最小公倍數LCM
🔑Key words
▶️factor tree因數樹，prime number質數
▶️prime factorization of a number一個數的質數分解，分解成質數的乘積
▶️fraction in the simplest form最簡分數，divide the numerator and the denominator by their GCF分子分母同時除以它們的最大公約數
▶️cross out劃掉
