Respuesta :
If Maria buys 2 pounds of cherries, Jerry buys 4 pounds and Sarah buys 7/9 of a pound then sum of pounds that they have bought is 61/9.
What is sum?
Sum is basically a number that comes after addition of all numbers whose sum is to be found. In mathematics it is also known as summation.
How to find sum?
Pounds bought by Maria=2
Pounds bought by Jerry=4
Pounds bought by Sarah=7/9
Total pounds bought by them =2+4+7/9
Taking LCM and solving:
=(18+36+7)/9
=61/9
Hence they have bought 61/9 pounds all together.
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