What is 4/5 - 3/10? Enter a zero or leave the whole number box blank to enter a fraction.

Answer =  1/2 or 0.5

Find the least common denominator or LCM of the two denominators:

LCM of 5 and 10 is 10

For the 1st fraction, since 5 × 2 = 10,

4/5=  4 × 2 Divided by 5 × 2 = 8/10

Likewise, for the 2nd fraction, since 10 × 1 = 10,

3/10  = 3 × 1 Divided By 10 × 1  = 3/10

Subtract the two fractions:

8/10  - 3/10  =  8 - 3 divided by 10  = 5/10

After reducing the fraction, the answer is

1/2

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.