Lesson Topics Discussion Quiz: Class Homework |
Steps-3 |
Title: Fraction Addition |
Grade Lesson s1-l5 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Quiz: Discussion Step
Id | Type | Name | Note |
---|---|---|---|
1 |
Problem |
Is this statement correct: \$5 35/25 + 8 28/30 = 15 5/15\$? |
|
2 |
Step |
Given fractions are |
\$5 35/25\$, \$8 28/30\$ |
3 |
Step |
Simplify the fractions and change the mixed fractions into improper fractions |
\$5 7/5\$, \$8 14/15\$ \$(25 + 7)/5\$ & \$(120 + 14)/15\$ =\$32/5\$ & \$134/15\$ |
4 |
Step |
Least Common Multiple (LCM) between the denominators |
L.C.M 5, 15 = 15 |
5 |
Step |
Multiply the numerator and denominator of each fraction by a number so that they have the LCM as their new denominator |
\$((32 times 3) + (134 times 1))/15\$ |
6 |
Step |
Add the numerators and keep the denominator are same |
\$(96 + 134)/15\$ = \$230/15\$ |
7 |
Step |
Divide the numerator with the denominator |
\$230 div 15\$ |
8 |
Step |
Whole number = Quotient (q) Numerator = Remainder (r) Denominator = Divisor |
q = 15, r = 5, divisor = 15 |
9 |
Step |
Mixed number = \$"Whole number" "Numerator"/"Denominator"\$ |
\$15 5/15\$ |
10 |
Step |
Yes, \$5 35/25 + 8 28/30 = 15 5/15\$. |
|
11 |
Sumup |
Please summarize steps |
|
Choices |
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12 |
Choice-A |
This is incorrect because the calculations show that the statement is mathematically valid |
Wrong No |
13 |
Choice-B |
The statement is correct. The left-hand side equals \$15 1/3\$, and the right-hand side is also \$15 1/3\$ |
Correct Yes |
14 |
Choice-C |
This is incorrect because "Yes" and "No" cannot be correct simultaneously |
Wrong Both |
15 |
Choice-D |
This is incorrect because one of the options (b: Yes) is indeed correct |
Wrong None |
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