Question

nick used 1 3/4 kg of salt to melt the ice on his sidewalk. He then used another 3 4/5 kg on the driveway. How much salt did he use in all?

Answer 1

5 11/20

Explanation:

1 3/4 + 3 4/5

Get a common denominator of 20

1 3/4 * 5/5 + 3 4/5 *4/4

1 15/20 + 3 16/20

4 31/20

Rewriting

4 + 20/20 + 11/ 20

4+1 + 11/20

5 11/20