So first we start off multiplying 3 • 7 to find a common denominator and you get 21. Then because you technically multiplied 3 by 7 you also have to multiply 1 by 7! you instead of 1/3 you have 7/21! do the similar thing to 2/7 but instead of multiplying it by 7 you use 3 so for this one instead of 2/7 it’s 6/21! add the two fractions together and get 13/21! subtract 13 from 21 to see what the remaining fraction is and your answer is 8/21! hope this helps!!
Answer:
I think the answer is 19
Step-by-step explanation:
Answer: 13 minutes
Step-by-step explanation:
( 0 + 2 + 10 + 8 + 20 + 12 + 30 + 7 + 40 + 1)/10 = 130/10 = 13
Hope this helps!
One you can make out of paper, the other is paper. ^-^
