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kirill [66]
2 years ago
14

3 1/4 - 1 3/5 | please help !!

Mathematics
1 answer:
Luba_88 [7]2 years ago
6 0

Answer:

Step-by-step explanation:

Step: 1: Convert mixed fraction to improepr fraction.

Step: 2 : Find the LCM of 4 , 5 = 20

Step 3: Find equivalent fractions with denominator as 20

Step 4: Now subtract.

3\dfrac{1}{4}-1\dfrac{3}{5}=\dfrac{13}{4}-\dfrac{8}{5}

             \sf = \dfrac{13*5}{4*5}-\dfrac{8*4}{5*4}\\\\\\     = \dfrac{65}{20}-\dfrac{32}{20}\\\\\\    = \dfrac{65-32}{20}\\\\\\    = \dfrac{33}{20}\\\\  \\    = 1 \dfrac{13}{20}

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