Which is greater four tenths or three eighths?

Answer 1

Convert to equivalent fractions with the same denominator and then compare the numerators:

4/10 = (4×4)/(10×4) = 16/40

3/8 = (3×5)/(8×5) = 15/40

16 > 15 → 16/40 > 15/40 → 4/10 > 3/8

→ four tenths is greater than three eighths.

Answer 2

Expressed as a decimal, 4/10 is equal to 0.4.

Expressed as a decimal, 3/8 is equal to 0.375.

The difference between the two is 0.025.