HCF and LCM

Front

Find the HCF of 21 and 28

Back

7

Front

LCM of 4 and 12?

Back

12

Front

Find the HCF of 12 and 15.

Back

3

Front

Find the HCF of 40 and 60?

Back

20

Front

Find the HCF of 30 and 36

Back

6

Front

Find the LCM of 12 and 16.

Back

48

Front

A carpenter has wooden planks of 12m and 18m. What size should she cut them into to avoid wasting wood?

Back

HCF

Front

The least common multiple of 12, 30, and 40 is…

Back

120

Front

The highest common factor of 28, 42, and 76 is….

Back

2

Front

Find the HCF for 18, 36, and 81

Back

9