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IgorLugansk [536]
3 years ago
8

What is the answer to 10 1/2 •15 1/8

Mathematics
2 answers:
LenKa [72]3 years ago
4 0

Answer:

19.6875

Step-by-step explanation:

grandymaker [24]3 years ago
3 0

Answer:

\large\boxed{10\dfrac{1}{2}\cdot15\dfrac{1}{8}=158\dfrac{13}{16}}

Step-by-step explanation:

Convert the mixed numbers to the improper fractions:

10\dfrac{1}{2}=\dfrac{10\cdot2+1}{2}=\dfrac{21}{2}\\\\15\dfrac{1}{8}=\dfrac{15\cdot8+1}{8}=\dfrac{121}{8}

Now we can multiply:

10\dfrac{1}{2}\cdot15\dfrac{1}{8}=\dfrac{21}{2}\cdot\dfrac{121}{8}=\dfrac{(21)(121)}{(2)(8)}=\dfrac{2541}{16}=158\dfrac{13}{16}

Other method.

You can convert to the decimal:

10\dfrac{1}{2}=10.5\\\\15\dfrac{1}{8}=15.125

And do the multiplication on decimals (can use a calculator):

10.5\cdot15.125=158.8125

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