Answer:
10
Step-by-step explanation:
Means back the numbers into multiples of several small numbers
Like:; 1. We take LCM of 40
Just break into multiples of small number
40= 2×2×2×5
2. We take LCM of 50
50= 5×5×2
So LCM for 100 is 2×2×5×5
after that see the pairs in the LCM like 2×2 or 3×3 or 4×4(same numbers)
Then write the the single number in place of two multipled numbers
Like:; 2×2 is written as 2 // 3×3 is written as 3
So we can write 100 into 2×2×5×5 and then after selecting pairs (2×2)×(5×5)
write pairs in single number 2×5
And so we get 2×5=10
So we find root of 100 that is 10
Answer:

Step-by-step explanation:
When you multiply, always start on the first value. In this case, this would be 2 from 72.

![==> 8[tex]and[tex]2 * 1](https://tex.z-dn.net/?f=%3D%3D%3E%208%5Btex%5D%3C%2Fp%3E%3Cp%3E%3C%2Fp%3E%3Cp%3Eand%3C%2Fp%3E%3Cp%3E%3C%2Fp%3E%3Cp%3E%5Btex%5D2%20%2A%201)

Write now, you should have 82 as your first value.
Now for your second value, which would be 7. But first you need to add a zero, because you are doing the tens place.


<u>Now you put the two over your next equation:</u>
and




Now you should have 980 written.
<u>Now add your two numbers together:</u>
<u></u>


I found the common multiple which was 12 so I multiplied 12 to all the fractions which gave an improper fraction that turned into a whole number. I hope this helps if you have any questions just ask me and I will answer.