What is 8 minus 9/10?

You can subtract the fraction 9/10 from the whole number 8. In this article, I will guide you on how to subtract fractions from whole numbers. We will use 8 minus 9/10 as an example so that you can use the same concept to solve similar problems. 8 minus 9/10 can be represented mathematically as 8 –9/10.

If you are in a hurry the answer to 8 – 9/10 is 7 1/10.

Before we learn how to solve 8 – 9/10 we need to look at the parts of a fraction first. 9 is the numerator while 10 is the denominator. Here are the steps to solve a whole number minus fraction calculation.

How to solve 8 – 9/10

There are two methods to solve 8 – 9/10, the LCM method, and the cross-multiplication method

How to solve 8 – 9/10 using the cross multiplication method

We will use the cross multiplication method to solve 8 – 9/10

Step 1:

Convert the whole number to a fraction so that we can have an even equation. Every number divided by 1 is equal to the number itself. So 8 as a fraction can be represented by

8/1

Step 2:

Write the new problem

8/1 – 9/10

Step 3:

Multiply the first numerator by the second denominator

8 × 10

Step 4:

Multiply the first denominator by the second numerator

1 × 9

Step 5:

Multiply both denominators

1 × 10

Step 6:

Subtract the answer in step 4 from the answer in step 3 then divide it by the answer in step 6

8 × 10 – 1 × 9/1 × 10

Step 7:

Write the answer in its simplest form

7 1/10

Thus 8 – 9/10 using the cross-multiplication method is 7 1/10

How to solve 8 – 9/10 using the LCM method

Step 1:

Convert the number into a fraction by dividing it by 1

8/1

Step 2:

Make the denominators equal by multiplying the smallest number by the LCM in form of a fancy form of 1

8/1 × (10/10) – 9/10

Step 3:

Subtract the numerators of the two fractions. (Note that the LCM becomes the new denominator) Thus you can subtract directly any two fractions that share the same denominator. Write the answer in its simplest form.

80/10 – 9/10

= 7 1/10

Thus 8 – 9/10 using the LCM method is 7 1/10