Question

Simplify the following. ​

Answer 1

Answer:

0.309259259

Step-by-step explanation:

Fraction  

−9

/20 can be rewritten as −  9/20  by extracting the negative sign.

Least common multiple of 4 and 20 is 20. Convert  

3/  and  9/20  to fractions with denominator 20.

Since 15/20  and 9 /20  have the same denominator, subtract them by subtracting their numerators.

Subtract 9 from 15 to get 6.

Reduce the fraction 6/20  to lowest terms by extracting and canceling out 2.

Fraction  −7/12   can be rewritten as −    7/12  by extracting the negative sign.

Least common multiple of 10 and 12 is 60.Convert    3/10  and  

7/12  to fractions with denominator 60.

Subtract them by subtracting their numerators.

Subtract 35 from 18 to get −17.

167/540=0.309259259