1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Bezzdna [24]
8 months ago
14

Let's find2. 1+5 3First write the addition with a common denominator.Then add.12— +51-4-13Х5

Mathematics
1 answer:
emmasim [6.3K]8 months ago
4 0
Answer:\frac{2}{5}+\frac{1}{3}=\frac{6}{15}+\frac{5}{15}=\frac{11}{15}Explanation:

The given addition exercise is:

\frac{2}{5}+\frac{1}{3}

The LCM of the denominator (5 and 3) = 15

Multiply 2/5 by 3/3

\frac{2}{5}=\frac{2\times3}{5\times3}=\frac{6}{15}

Multiply 1/3 by 5/5

\frac{1}{3}=\frac{1\times5}{3\times5}=\frac{5}{15}

The addition becomes

\frac{6}{15}+\frac{5}{15}=\frac{11}{15}

Therefore, we can fill in the vacant boxes as shown below:

\frac{2}{5}+\frac{1}{3}=\frac{6}{15}+\frac{5}{15}=\frac{11}{15}

You might be interested in
Why are halves a good choice for benchmark fractions for 1 1/3
Natalka [10]

Answer and explanation:

Benchmark fractions are fractions that are used as references in measuring other fractions. They are easily estimated and so can be used in measuring more "specific" fractions such as 1/5, 7/9, 3/7, 1/3 etc. If I wanted to measure 1 1/3cm for instance using a calibrated ruler, having centimeter measurements, I would first find 1cm on the ruler and then find half of one centimeter. Seeing that half is bigger than 1/3 but close, I could then estimate 1/3 to be somewhere less than 1/2 but a bit close to it

3 0
3 years ago
Y= 2x-8,what is the slope and the y-intercept
Natalija [7]
Hi is the answer so this makes it okay to do thing when you have it
8 0
3 years ago
Working together, it takes Sam, Jenna, and Francisco two hours to paint one room. When Sam works alone, he can paint one room in
lutik1710 [3]

Answer:  12 hours

Step-by-step explanation:

Given : Working together, it takes Sam, Jenna, and Francisco two hours to paint one room.

When Sam works alone, he can paint one room in 6 hours. When Jenna works alone, she can paint one room in 4 hours.

Let 't' be the time taken by Francisco to paint one room on his own.

Then , we have

Rate of work of  Sam +Rate of work of Jenna + Rate of work of  Francisco =Rate of work they all do together

\dfrac{1}{6}+\dfrac{1}{4}+\dfrac{1}{t}=\dfrac{1}{2}

i.e.  \dfrac{1}{t}=\dfrac{1}{2}-(\dfrac{1}{6}+\dfrac{1}{4})

i.e.  \dfrac{1}{t}=\dfrac{1}{2}-(\dfrac{4+6}{24})

i.e.  \dfrac{1}{t}=\dfrac{1}{2}-\dfrac{10}{24}

i.e.  \dfrac{1}{t}=\dfrac{1}{2}-\dfrac{5}{12}

i.e.  \dfrac{1}{t}=\dfrac{6-5}{12}

i.e.  \dfrac{1}{t}=\dfrac{1}{12}

i.e. t= 12

Hence,  Francisco would take 12 hours to  paint one room on his own.

8 0
3 years ago
You guys, I seriously need help with this! I have been working on this for like 5 hours and I still can't understand it! Please
Alina [70]

Step-by-step explanation:

Q1. E

Q2. A

Q3. H

sorry if I'm wrong anyways

Q4. C

4 0
3 years ago
What is the negation of this statement x+y 10?
andre [41]
I'm not sure what your statement is.
Is it x+y = 10?

Because if it is, the negation of this statement would simply be x+y<span>≠10, which stands for not equal. </span>
7 0
2 years ago
Other questions:
  • I am a number between 60 and 100 my ones digit is two less than the digit in my ten. I'm a prime number what is my number?
    13·1 answer
  • If 4x = 64,<br> find the value of 2x + 3.
    14·2 answers
  • The amount of time it takes p people to paint d doors varies directly with the number of doors inversely with the number of peop
    9·2 answers
  • Explain how to find the gcf of three numbers
    7·1 answer
  • 3x^2+15x+25=−3x−2<br>whats the discrimate?​
    5·2 answers
  • If the triangle measure 180 degrees. What is the missing angle?
    15·2 answers
  • 55. A rhombus has side length 10 cm, and the longer diagonal measuring 10 cm.
    12·1 answer
  • You spend $40 on 5 pounds of concrete. How much would it cost for 7 pounds of concrete
    7·2 answers
  • Determine the slope given the two points. (-19,4) (17,11) PLEASE SHOW WORK
    11·1 answer
  • Whats reciprocal of 4 1/4
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!