Question

The world record for the heaviest train pulled with a human beard is a 2 3/4 metric tons. How much heavier is the train pulled by teeth than the train pulled with a beard

Answer 1

The train pulled by teeth is 1.45 metric tons heavier or 1 9/20 metric tons heavier than the train pulled with a beard.

Explanation:

Least Common Denominator (LCD): 20

2 3/4 metric tons = 2 15/20 = 2.75 metric tons

4 1/5 metric tons = 4 4/20 = 4.2 metric tons

FRACTION:

4 4/20 = 84/20

2 15/20 = 55/20

DECIMAL:

4.20-2.75 = 1.45 metric tons

Difference In Weight: (84-55)/20 = 29/20 = 1 9/20 = 1.45 metric tons

4.2/2.75 = 52.727273% heavier

HOPE THIS HELPS!!!