Estimate 137,638 plus 52,091

2 answers:

8 0

First round
137,638=100,000
52,091=50,000
Then add to get the estamate
100,000
+
50,000
150,000
Then to get the real answer add
1
137,638
+
52091
189,729

Klio2033 [76]3 years ago

4 0

Answer:

190,000.

Step-by-step explanation:

We are asked to estimate the sum of 137,638 plus 52,091.

First of all, we will round both digits to nearest ten thousands as:

$137,638\approx 140,000$

$52,091\approx 50,000$

Add both numbers:

$140,000+50,000=190,000$

Therefore, our required sum would be 190,000.

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3 3/4 + 5/12<br>help me plz lol

m_a_m_a [10]

Answer:

4 $\frac{1}{6}$

Step-by-step explanation:

When adding fractions, you want to make the denominators of the fraction the same. To do this, we can multiply both the numerator and denominator of 3/4 by 3. When changing either a denominator or numerator in a fraction, you must do the same thing to the numerator as the denominator.

Now we have $\frac{3\cdot3}{4\cdot3} = \frac{9}{12}$ . To add 9/12 and 5/12, we keep the denominator the same, and add the numerators, getting $\frac{9+5}{12} =\frac{14}{12}$ . This is greater than 1, so we can take 12/12 from 14/12, and make it $1 \frac{2}{12}$ . If we then add 3, we get $4 \frac{2}{12}$ , which simplifies to $4 \frac{1}{6}$