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n200080 [17]
3 years ago
12

What is the sum of 2/7 and 3/9?​

Mathematics
1 answer:
In-s [12.5K]3 years ago
5 0

Answer:

39/63

Step-by-step explanation:

18  21     39/63

63  63

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Help plz I'm desperate ​
lutik1710 [3]

<u>Anna:</u>

1st month = 18 + \frac{3}{4} = 18\frac{3}{4} inches

2nd month = 18\frac{3}{4} + \frac{3}{4} = 19\frac{1}{2}

3rd month = 19\frac{1}{2} + \frac{3}{4} = 20\frac{1}{4}

4th month = 20\frac{1}{4} + \frac{3}{4} = 21

5th month = 21 + \frac{3}{4} = 21\frac{3}{4}

<u>Grace:</u>

Because Anna is \frac{9}{4} inches shorter than Grace, we can start the count from the third month:

1st month = 20\frac{1}{4}

2nd month = 21

3rd month = 21\frac{3}{4}

4th month = 21\frac{3}{4} + \frac{3}{4} = 22\frac{1}{2}

5th month = 22\frac{1}{2} + \frac{3}{4} = 23

7 0
3 years ago
Jan wants to build a circular pond in his backyard. On the blueprint, the diameter of the pond is 15.5 in. The blueprint has a s
cestrela7 [59]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
Which expression is equivalent to s+s -4s<br> A- 1-3s<br> b- -4s<br> c- s-3<br> d- -2s
a_sh-v [17]

Answer:

D. -2s

Step-by-step explanation:

s+s-4s

=1s+1s-4s

=(1+1-4)s

=-2s

3 0
2 years ago
The GFC of two numbers is equal to lesser of the numbers
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It will be equal to the number because gcf means to equal to not less that is lcm
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