What is the answer to 10 1/2 •15 1/8

Question

asked Oct 17, 2021 150k views

2 Answers

Aric Lasry · Answer 1 · 2021-10-19T10:17:42+0000

Answer:

$\large\boxed{10(1)/(2)\cdot15(1)/(8)=158(13)/(16)}$

Explanation:

Convert the mixed numbers to the improper fractions:

$10(1)/(2)=(10\cdot2+1)/(2)=(21)/(2)\\\\15(1)/(8)=(15\cdot8+1)/(8)=(121)/(8)$

Now we can multiply:

$10(1)/(2)\cdot15(1)/(8)=(21)/(2)\cdot(121)/(8)=((21)(121))/((2)(8))=(2541)/(16)=158(13)/(16)$

Other method.

You can convert to the decimal:

$10(1)/(2)=10.5\\\\15(1)/(8)=15.125$

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

$10.5\cdot15.125=158.8125$