Lesson Example Discussion Quiz: Class Homework |
Step-2 |
Title: Addition Fractions |
Grade: 8-a Lesson: S1-L5 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Add \$23/30 + 33/40\$ |
|
2 |
Step |
Given Fraction |
\$23/30 + 33/40\$ |
3 |
Step |
Now Least Common Multiple (LCM) between the denominators |
LCM of 30, 40 = 120 |
4 |
Step |
Multiply the numerator and denominator of each fraction by a number so that they have the LCM as their new denominator |
\$((23\times4) + (33\times3))/120\$ |
5 |
Step |
Add the numerators and keep the denominator the same |
\$(92 + 99)/120\$ |
6 |
Formula: |
After simplification we get |
\$191/120\$ |
7 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
8 |
Choice.A |
It is incorrect because it seems to be twice the correct answer, likely due to doubling the numerator |
\$38/120\$ |
9 |
Choice.B |
It is correct because it adds the fractions with the common denominator of 120 |
\$191/120\$ |
10 |
Choice.C |
It is incorrect It seems to be an attempt to add the numerators without finding a common denominator |
\$36/120\$ |
11 |
Choice.D |
It is incorrect it appears to be an attempt to add the numerators without finding a common denominator |
\$45/120\$ |
12 |
Answer |
Option |
B |
13 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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