How do you write 7 ¼ as an improper fraction?

2 Answers
Mar 16, 2018

See an explanation below:

Explanation:

7 1/4 = 7 + 1/4 = (4/4 xx 7) + 1/4 = 28/4 + 1/4 = (28 + 1)4 = 29/4

The quick rule is:

  • Multiply the integer by the denominator: 7 xx 4 = 28

  • Add the numerator to this product: 28 + 1 = 29

  • Put this result over the denominator: 29/4

I n/d = ((I xx d) + n)/d

7 1/4 = ((7 xx 4) + 1)/4 = (28 + 1)/4 = 29/4

Mar 16, 2018

7 1/4 = (4xx7+1)/4 = 29/4

Explanation:

When a number is given an improper fraction, it means the entire number is given as a number of portions.

If the portion size is quarters, the improper fraction will show how many quarters there are altogether.
Note than every whole number is 4/4

If the portion size is thirds, the improper fraction will show how many thirds there are altogether.
Note than every whole number is 3/3

If the portion size is sixths, the improper fraction will show how many sixths there are altogether.
Note than every whole number is 6/6

In this case we have 7 1/4 which is made up of 7 whole numbers and an extra 1/4

In each of the 7 whole numbers there are 4/4....

Altogether that is 7 xx 4 = 28 quarters, written as 28/4

But there is an extra 1/4, meaning we have 29/4

To calculate it quickly:

7 1/4 = (4xx7+1)/4 = 29/4