❤️Math Follow Me and Practice everyday 💯
🤔️Topic today：The Greatest Common Factor and the Least Common Multiple最大公约数GCF和最小公倍数LCM
🔑Key words
▶️factor tree因数树，prime number质数
▶️prime factorization of a number一个数的质数分解，分解成质数的乘积
▶️fraction in the simplest form最简分数，divide the numerator and the denominator by their GCF分子分母同时除以它们的最大公约数
▶️cross out划掉
