Answer:
i believe x is 12.
Step-by-step explanation:
three times three is nine, so you multiply four by three to get 12. you can also check your answer by dividing 12 by three and 9 by three to get 4,3 so the answer is correct.
Of multiplication or addition?
First find least common denominator to subtract.
9=(3)×3
15=(3)×5
3×3×5=45 is lcd
4/9=20/45
7/15=21/45
(20/45-21/45)=(20-21)/45=-1/45
-1/45÷13/10
multiply by reciprocal instead of dividing
-1/45×10/13=(1×10)/(45×13)
-10/585
Answer:
<em>1, 3, 5, 15</em>
Step-by-step explanation:
Factors of 45: 1, 3, 5, 9, 15, 45
Factors of 15: 1, 3, 5, 15
The common factors are written in bold.
Answer: 1, 3, 5, 15
2 3/5 divide 6
pretend that 6 has a denominator which is 6
2 3/5 divide 6/1
make 2 3/5 into a improper fraction
multiply the whole number and denominator together
2*5=10
add 10 with the numerator
10+3=13
13/5 divide 6/1
always flip over the second fraction
13/5*1/6
13*1=13- multiply the numerators together
5*6=30 - multiply the denominators together
13/30- as a decimal=0.43333 ( the 3s continue forever )
answer:
0.433333
