The steps to turn 1.8 as a fraction are: 18/10, or 9/5.
Put 1.8 as 1.8/1.
For each digit following the decimal point, multiply the numerator and denominator by 10.
1.8/1 = 1.8 × 10/1 x 10 = 18/10
Find the Greatest Common Factor (GCF) of 18 and 10 to simplify the fraction. Don't forget that all a factor is simply a number that divides into another number with no leftovers.
1 2 3 6 9 18 are all factors of 18.
You can break down a 10 into its parts by using: 1 2 5 10
Two is the greatest common factor (GCF) between the numbers 18 and 10.
The numerator and denominator are then divided by the GCF value to simplify the fraction.
18/10 = 18 ÷ 2/10 ÷ 2 = 9/5
For what it's worth, the total of the integral of numbers is 1.
You may write this as a fraction: 0.8 = 8/10 in decimal form.
Exact decomposition into simple fractions: 180/100 = 18/10 = 9/5