Estimate 4/5 + 18/20
A. 1
B. 1 1/2
C. 2
both fractions are about 1, so 1+1 = 2
but both fractions are less than 1, so 2 may be a bit high.
Probably 1 1/2 is better
No need to estimate, you should be able to do it exactly in your head
4/5 = .8
18/20 = 9/19 = /9
can you do .8+.9 mentally ?
Whole practice?
Ill come back whenever i have the answers
CONNEXUS ONLY!!
1.0
2.1/2
3.2
4.18
5.19/17
6.5/7
7.17/18
8.1 7/16
9.23/32
10.3/7
11.7/10
PLEASE TRUST ME THESE ARE THE RIGHT ANSWERS!!(connexus only)💗
To estimate the sum of 4/5 + 18/20, you can use some basic math skills.
Step 1: Find a common denominator for the fractions. In this case, the common denominator for 5 and 20 is 20.
Step 2: Convert both fractions to have the common denominator of 20. Multiply the numerator and denominator of the first fraction (4/5) by 4, and the numerator and denominator of the second fraction (18/20) by 1.
So, 4/5 becomes 16/20 and 18/20 stays the same.
Step 3: Add the two fractions together. In this case, we have 16/20 + 18/20.
Adding the numerators (16 + 18 = 34), we get 34/20.
Step 4: Simplify the fraction, if possible. In this case, we can simplify 34/20 by dividing both the numerator and denominator by their greatest common factor, which is 2.
Dividing 34 by 2 gives you 17, and dividing 20 by 2 gives you 10.
So, 34/20 simplifies to 17/10.
Now, since the question is asking for an estimate, you can round the fraction to the nearest whole number or mixed number.
In this case, 17/10 is greater than 1 but less than 2. So the best estimate for 4/5 + 18/20 is 2.
Therefore, the correct answer is C. 2.