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
Mashutka [201]
3 years ago
10

Use the least commom denominator of 10 and 15 to solve 2/10+ 7/15

Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
6 0
The least common denominator of 10 and 15 is 30. It's easiest to use trial and error to find the LCD. In this case, just multiply both numbers by 2 and see if that works. Since 15 doesn't go into 20, I tried multiplying 15 by 2  instead, and got 30, which is divisible by 2. If that doesn't work, move on to multiplying them by 3, then 4 four, and so on. However, in this case, it did work, so, since you multiplied 15 by two to get 30, multiply 7 by two to get the fraction 14/30. Then, since you multiplied 10 by 3 to get 30, multiply 2 by 3 to get 6/30. Then, add the two together to get 20/30 and simplify the fraction to 2/3. 

2/10 + 7/15   Given.
6/30 + 14/30   LCD.
20/30   Add.
2/3   Simplify.
You might be interested in
For the equation 3x - 5y = -3, what is the value of y when x is 1?
JulsSmile [24]

Answer:

6/5

Step-by-step explanation:

Put 1 where x is and solve.

3·1 -5y = -3

-5y = -6 . . . . . subtract 3

y = 6/5 . . . . . . divide by -5

The value of y is 6/5 when x = 1.

7 0
3 years ago
Read 2 more answers
Find the missing length
SashulF [63]

Answer:

c = 37

Step-by-step explanation:

Pythagorean thm formula:

a² + b² = c²

Given:

a = 12

b = 35

Work:

a² + b² = c²

12² + 35² = c²

144 + 1225 = c²

c² = 1369

\sqrt{c^2} =\sqrt{1369}

c = 37

6 0
2 years ago
Read 2 more answers
How do i factor this trinomial 5y^2 — 7y — 6 ​
scZoUnD [109]

Answer:

(5y+3) x (y-2)

Step-by-step explanation:

5y^2-7y-6

5y^2+3y-10y-6

y(5y+3(-2(5y+3)

(5y+3) x (y-2)

5 0
3 years ago
If you removed 1/4" of stock from a 1" piece of wood, what would you have remaining?
stellarik [79]
3/4” of a inch of stock is left
4 0
3 years ago
Whats 9+`10+10+10-10
Mkey [24]

Answer:

The answer to this equation is 29 since my other answer got deleted:(

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • 758 rounded to the nearest hundred is
    13·2 answers
  • Answer both questions and I’ll mark brainliest!
    14·1 answer
  • A recipe for fluid ounces of milk. What is the amount of milk called for in cups
    7·2 answers
  • What is the slope of this line ?????
    10·1 answer
  • A toy manufacturer makes lightweight balls for indoor play. The large basketball uses 4 ounces of foam and 20 minutes of labor a
    14·1 answer
  • What’s the square root of 9,801?
    10·2 answers
  • If 7^9/7^n = 7^3 , then n is _____.
    8·2 answers
  • Evaluate the following expression.<br> 3×9+10× <br> {36}{6} <br> ​
    5·1 answer
  • An airplane is flying from New York City to Los Angeles. The distance it travels in miles, d is 0.15 per second of time, t.
    7·1 answer
  • Helppp quick quick 15 points
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!