Lesson Example Discussion Quiz: Class Homework |
Step-3 |
Title: Subtraction Fractions |
Grade: 8-a Lesson: S1-L6 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Subtract \$8 35/14 - 7 24/16\$. |
|
2 |
Step |
Given Fraction |
\$8 35/14 - 7 24/16\$ |
3 |
Step |
We change the mixed fractions into improper fractions |
\$147/14 - 136/16\$ |
4 |
Step |
Now, take the LCM of the denominators |
LCM of 14,16 is 112 |
5 |
Step |
Multiply the numerator and denominator of each fraction by a number so that they have the LCM as their new denominator |
\$((147\times8) - (136\times7))/112\$ |
6 |
Step |
Subtract the numerators and keep the denominator the same |
\$(1176 - 952)/112\$ |
7 |
Step |
After subtracting we get |
\$224/112\$ |
8 |
Step |
Divide the numerator with the denominator |
\$224\div112\$ |
9 |
Step |
After division we get |
2 |
10 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
11 |
Choice.A |
Incorrectly subtract 7 from 8 before simplifying the fractions given option is wrong |
4 |
12 |
Choice.B |
The correct answer is 2 because that is the result of subtracting the given mixed numbers after converting them to improper fractions and performing the subtraction |
2 |
13 |
Choice.C |
Incorrectly multiply the fractions before simplifying them. The given option is wrong |
3 |
14 |
Choice.D |
This is not the correct result of the subtraction |
6 |
15 |
Answer |
Option |
B |
16 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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