Which decimal is greatest among these options: 0.5, 0.75, 0.65, 0.60?

• A. 0.5
• B. 0.75
• C. 0.65
• D. 0.60

Answer: (B)

When comparing decimals that are less than 1, focus on digits after the decimal, starting with the tenths place. The tenths digits here are 5 for 0.5, 7 for 0.75, 6 for 0.65, and 6 for 0.60. Since 7 is larger than the others, the number with 7 tenths is the largest overall. The other numbers all have fewer tenths (either 5 or 6), so they cannot exceed the one with 0.7 in the tenths place. Therefore, the greatest decimal among them is 0.75.