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šŸš€ Space Mission: Math Explorer! šŸŒŒ
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Subtracting Mixed Numbers ā€” Unlike Denominators & Borrowing ā€¢ TEKS 5.3(K)
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šŸ“ Steps: ā‘  Find the LCD ā‘” Convert both fractions ā‘¢ Borrow if needed ā‘£ Subtract ā‘¤ Simplify!
Enter: Whole # in šŸŸ” box ā€¢ Numerator in šŸ”µ box ā€¢ Denominator in šŸŸ£ box. šŸŽØ Watch the mystery picture reveal on the 'šŸŽØ Mystery Picture' tab!
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Story Problem + EquationWhole #
šŸŸ” Type here		Numerator
šŸ”µ Type here		Denominator
šŸŸ£ Type here		Check āœ“/āœ—
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šŸš€ The rocket had 5 and 1/4 tanks of fuel. It burned 2 and 2/3 tanks at launch.
How many tanks remain? (Find the LCD of 4 and 3, then borrow!)
5 1/4 āˆ’ 2 2/3 = ? Step 1: LCD of 4 & 3 = ___ Step 2: Borrow if needed		šŸ›ø Awaiting...
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šŸš€ Astronaut Zara had 8 and 1/3 hours of oxygen. She used 4 and 3/4 hours spacewalking.
How many hours of oxygen remain? (LCD of 3 and 4, then borrow!)
8 1/3 āˆ’ 4 3/4 = ? Step 1: LCD of 3 & 4 = ___ Step 2: Borrow if needed		šŸ›ø Awaiting...
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šŸš€ Mission Control packed 6 and 1/5 crates of food. The crew ate 3 and 2/3 crates.
How many crates were left? (LCD of 5 and 3, then borrow!)
6 1/5 āˆ’ 3 2/3 = ? Step 1: LCD of 5 & 3 = ___ Step 2: Borrow if needed		šŸ›ø Awaiting...
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šŸš€ The spacecraft traveled 9 and 1/4 light years. It has completed 5 and 2/3 light years.
How many light years remain? (LCD of 4 and 3, then borrow!)
9 1/4 āˆ’ 5 2/3 = ? Step 1: LCD of 4 & 3 = ___ Step 2: Borrow if needed		šŸ›ø Awaiting...
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šŸš€ The space station held 7 and 1/6 gallons of water. The crew used 4 and 5/8 gallons.
How much water is left? (LCD of 6 and 8, then borrow!)
7 1/6 āˆ’ 4 5/8 = ? Step 1: LCD of 6 & 8 = ___ Step 2: Borrow if needed		šŸ›ø Awaiting...
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šŸš€ Captain Nova had 10 and 1/3 hours of mission time. She used 6 and 5/6 hours.
How many hours remain? (LCD of 3 and 6, then borrow and simplify!)
10 1/3 āˆ’ 6 5/6 = ? Step 1: LCD of 3 & 6 = ___ Step 2: Borrow if needed		šŸ›ø Awaiting...
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šŸš€ The lab had 5 and 1/4 kg of moon rocks. Scientists used 1 and 3/5 kg for experiments.
How many kg were left? (LCD of 4 and 5, then borrow!)
5 1/4 āˆ’ 1 3/5 = ? Step 1: LCD of 4 & 5 = ___ Step 2: Borrow if needed		šŸ›ø Awaiting...
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šŸš€ The solar array collected 8 and 1/6 units of energy. The ship used 3 and 3/4 units.
How much energy is left? (LCD of 6 and 4, then borrow!)
8 1/6 āˆ’ 3 3/4 = ? Step 1: LCD of 6 & 4 = ___ Step 2: Borrow if needed		šŸ›ø Awaiting...
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šŸš€ Astronaut Rex had 6 and 1/3 hours until landing. A repair took 2 and 5/6 hours.
How many hours until landing? (LCD of 3 and 6, then borrow and simplify!)
6 1/3 āˆ’ 2 5/6 = ? Step 1: LCD of 3 & 6 = ___ Step 2: Borrow if needed		šŸ›ø Awaiting...
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šŸš€ The telescope had 9 and 1/5 hours of battery life. A scan used 4 and 7/10 hours.
How many hours remain? (LCD of 5 and 10, then borrow and simplify!)
9 1/5 āˆ’ 4 7/10 = ? Step 1: LCD of 5 & 10 = ___ Step 2: Borrow if needed		šŸ›ø Awaiting...
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šŸŽÆ Your Score:0 / 10 correct!
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šŸ”­ Mission needs more prep! Use the steps below and try again! šŸš€
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šŸ’” HOW TO SUBTRACT MIXED NUMBERS WITH UNLIKE DENOMINATORS:
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ā‘  Find the LCD ā‘” Rewrite both fractions with the LCD ā‘¢ If top fraction < bottom, borrow 1 from whole number ā‘£ Subtract ā‘¤ Simplify
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Example: 4 1/3 āˆ’ 1 3/4 LCD of 3 & 4 = 12
ā†’ 4 4/12 āˆ’ 1 9/12 Since 4 < 9, borrow! ā†’ 3 16/12 āˆ’ 1 9/12 = 2 7/12 āœ“
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