Which one is bigger two thirds or five eighths?

2/3 or 5/8

Bring both fraction to a common denomiator of 3 x 8 = 24

Then bring the fractions to their equivalent values . Hence

2/3 & 5/8 => 16/24 & 15/24

We now compare the numerators (top numbers)

Clearly 16 > 15

Hence

16/24 > 15/24

Hence it follows

16/24 > 15/24 => 2/3 > 5/8

Another method is to convert both fractions to decimals

2/3 = 0.666.... ~ 0.667

5/8 = 0.625

Hence

0.667 & 0.625

Drop the decimal points and the prefix zeroes.

667 & 625

Clearly 667 > 625 .

Henceit follows that 2/3 > 5/8 As above.