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SOVA2 [1]
2 years ago
8

What is the least common multiple (LCM) of 4 and 15? A. 19 B. 20 C. 60 D. 30

Mathematics
2 answers:
ad-work [718]2 years ago
8 0

Answer:

C

Step-by-step explanation:

Multiples of 4: 4,8,16,20,24,28,32,36,40,44,48,52,56,60

Multiples of 15: 15,30,45,60

Th smallest number that they both can multiply to is 60

vaieri [72.5K]2 years ago
3 0
The least common multiple would be 60
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Simplify the following expression 2/5 + 4/3 over 3/5
madreJ [45]
This written out is:

2/5 + 4/3
------------
     3/5

Roughly, now first we need to change the denominators to all match up in order to properly solve this problem.

Both 5 and 3 go into 15, 5 goes into 15 3 times and 3 goes into 15 5 times. With that said, multiply the individual numerators by 5 and 3.

2/5 -> 2*3/15 -> 6/15
4/3 -> 4*5/15 -> 20/15
3/5 -> 3*3/15 -> 9/15

With this, we then add the top numerator of the overall problem:

26/15
------- | With this we now cross-multiply.
 9/15

26/15 * 15/9 = 390/135 | Now to simplify this.

135 goes into 390 twice, as 270. Subtract 390 by 270, leaving us with 120.

Meaning: 2 120/135 is the answer, but now to simplify. Divide 120 and 135 by 5 to lessen this.

24/27 | Divide this by 3 to get your most simplified answer.
8/9 | Leaving us with the answer of:

2 8/9

I hope this helps, have a great rest of your day! ^ ^
| | Ghostgate | |
6 0
3 years ago
88π<br> Rational or irrational <br> Good answer i mark brainlest
vladimir1956 [14]

Answer:

Irrational

Step-by-step explanation:

The number is irrational because when you convert it to decimal form, you get 276.4601... a repeating decimal that goes on and on.

6 0
2 years ago
Read 2 more answers
Please help and work please
navik [9.2K]
84-60=24
210-24=186
h=186
3 0
3 years ago
Help=10pts<br> 5,6,7,and 8 plz
Lesechka [4]

Answer:

number 5:4/12

#6: 25/45

#7: 26/44

#8: 52/30

Step-by-step explanation:

8 0
3 years ago
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Where was a error made in combining and solving the equation below?
Lera25 [3.4K]
It should be a positive 5 not a negative so the error was made at the end because u divide
3 0
3 years ago
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