Sumwise

What is 75 Percent of 42?

75% of 42 = 31.5

Result
31.5
Remaining
10.5
75% as decimal
0.75
42 + 75%
73.5

Sumwise · Checked by Theo Abbott · Data: exact arithmetic; unit definitions from NIST SP 811 · Updated · How we check it

How to work it out

  1. Turn the percentage into a decimal: 75 ÷ 100 = 0.75
  2. Multiply: 0.75 × 42 = 31.5
  3. Check: Work backwards: 31.5 ÷ 42 × 100 = 75%.

Another method. As a proportion of part to whole: 75/100 = part/42, so part = 75 × 42 ÷ 100 = 31.5. Both methods always give the same answer.

In a spreadsheet: =75%*42. Forgetting to divide the percentage by 100 makes the answer 100 times too big. Note that x% of y always equals y% of x.

What the result means

31.5 is the 75% share of 42. The remaining 25% is 10.5, and the two parts add back up to 42.

Discounts: 75% off an item priced $42 saves $31.5, so you pay $10.5.

Adding and taking away 75%

Increasing 42 by 75% gives 73.5 and decreasing it by 75% gives 10.5. These do not cancel out: raising 42 by 75% and then lowering the result by 75% ends at 18.375, because the second 75% is taken of a bigger number.

Related results

Results for nearby numbers
5% of 42

5% of 42 = 2.1

10% of 42

10% of 42 = 4.2

15% of 42

15% of 42 = 6.3

20% of 42

20% of 42 = 8.4

25% of 42

25% of 42 = 10.5

50% of 42

50% of 42 = 21

The other way round: 42% of 75

Practice

15% of 71
Show answer

15% of 71 = 10.65

43% of 56
Show answer

43% of 56 = 24.08

88% of 2
Show answer

88% of 2 = 1.76

97% of 8
Show answer

97% of 8 = 7.76

88% of 38
Show answer

88% of 38 = 33.44

8% of 41
Show answer

8% of 41 = 3.28

Calculate another

How answers are calculated and checked: methodology.

Questions

What is 75 Percent of 42?

75% of 42 is 31.5. Formula, steps and practice examples.

What is 75% off 42?

10.5. Taking 75% off leaves 25% of 42.

What is 42 plus 75%?

73.5. Adding 75% is the same as multiplying by 1.75.