D Learning Task 1: Read each problem and then solve. Write your answer in your notebook. 1) Mrs. Susan bought 3/5 m of curtain cloth. She used 1/8 m to make a curtain for the living room window. How many meters of cloth were not used? 2) Faye had a piece of ribbon. After using 3/8 meter for her headband, she had 1/4 meter left. How many meters of ribbon did she have at first? 3) Rita has 3/4 m of Ifugao cloth. She used 2/3 m for placement. What part of Ifugao cloth was left.
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Answers:
1. Mrs. Susan bought 3/5 m of curtain cloth. Used 1/8 m to make curtains for living room window. How many meters of cloth were NOT used?
Least common multiple of 5 and 8 is 40. Convert our fractions above to fractions with the common denominator of 40.
Now that they have a common (same) denominator, simply subtract the numerators. Subtract 5 from 24.
This gives us our answer of:
OR 0.475 of cloth was not used by Mrs. Susan.
2. Faye has a ribbon. After using 3/8 meters for her headband, she had 1/4 m left. How many meters did she have left at first?
Let's move the fractions to one side and variables (x) to the other side.
The least common multiple of 4 and 8 is 8. Convert the fractions to a common denominator of 8.
Add 2 and 3 to get 5.
This gives us our answer of:
OR 0.625
3. Rita has 3/4 m of cloth. She used 2/3 m for a placemat. How much cloth was left?
The least common multiple of 4 and 3 is 12. Convert the fractions so that they both have a denominator of 12.
Since both fractions now have the same denominator, we can simply subtract 9 from 8.
This gives us an answer of:
OR 0.0833