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kotegsom [21]
2 years ago
11

What common denominator can you use to add these mixed numbers? -8 3/8 + 6 1/4

Mathematics
2 answers:
Aneli [31]2 years ago
8 0

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

- 8 \frac{3}{8}  + 6 \frac{1}{4}  =  \\

\frac{ - 64 + 3}{8}  +  \frac{24 + 1}{4}  =  \\

\frac{ - 61}{8}  +  \frac{25}{4}  =  \\

\frac{ - 61}{8}  +  \frac{25 \times 2}{4 \times 2}  =  \\

\frac{ - 61}{8}  +  \frac{50}{8}  =  \\

\frac{ - 61 + 50}{8}  =  \\

\frac{ - 11 - 50 + 50}{8}  =  \\

\frac{ - 11}{8}  =  -  \frac{11}{8} =  - 1 \frac{3}{8}   \\

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

RSB [31]2 years ago
7 0

Answer:

Step-by-step explanation:

8 = 2 * 2 * 2

4 =  2* 2

Least common denominator = 2 * 2 *2 = 8

-8\frac{3}{8}=-\frac{67}{8} \\\\6\frac{1}{4} = \frac{25}{4}\\

-8\frac{3}{8}+6\frac{1}{4}=-\frac{67}{8}+\frac{25}{4}\\\\=-\frac{67}{8}+\frac{25*2}{4*2}\\\\=-\frac{67}{8}+\frac{50}{8}\\\\=\frac{-67+50}{8}\\\\=\frac{-17}{8}\\\\=-2\frac{1}{8}

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