Which is bigger three eighths or eight tenths?

Answer 1

There are two ways of doing this.

# Convert to equal denominators: # Convert to decimal. 1. 8/10 = 32/40

3/8 = 15/40

Since 32 > 15, 8/10 > 3/8

2. 8/10 = 0.8

3/8 = 0.375

Now it is easy to see 8/10 > 3/8

That is, 8/10 is bigger

Answer 2

Eight tenths is larger. By simple inspection, you see that 3/8 is less than 1/2, and you see that 8/10 is more than one half. To be more precise multiply the first ratio by 10/10 (which equals one of course) giving 30/80. Multiply the second ratio by 8/8 (again equal to one) giving 64/80.