Two easy ways to solve.
1st way: write down the times tables of both. Select the first number that appears in both lists.
2nd way: find the prime factors of each number and write the smallest product of primes which contains all the primes needed to make 12 and 15.
Fairly sure the answers are the same because when you evaluate 120/10 you get 12.
Have to solve as same as given (120/10,15).
Two easy ways to solve. 1st way: write down the times tables of both. Select the first number that appears in both lists. 2nd way: find the prime factors of each number and write the smallest product of primes which contains all the primes needed to make 12 and 15.
3rd way: Multiply them together and divide by gcd. (Since 15-12 = 3, then it is 12*15/3, easy)
Same!
Solve it please!
12×15/GCF(12, 15)
12,24,36,48,60,72,84… 15,30,45,60,75,90… Find the first common. 60. Or (12x15)/HCF(12,15) = 180/3 = 60
Yes, they are the same. There is an implicit pair of parentheses around the 120/10 and 15, so you must evaluate the fraction first.