14: 14, 28, 42, 56, 70, 84, 98, 112, 126, 140, 154, 168, 182, 196, 210, 224,…
35: 35, 70, 105, 140, 175, 210, 245, 280, 315, 350, 385, 420, 455, 490, 525,…
LCM(14, 35) = 70
The answer is B.
I like that you left How you did it on there. When I was in school I did it the same way. I would assume you’re using is over of equals percent over 100. The problem however is that the above number is always the total which means it should be on the bottom.
X/72= 45/100. Similar to what you have written. Solve the proportion. 100x=72x45
100x= 3240
X = 32.4
Many fractions are equal. You can double both numbers to make a new fraction with the same properties, or times them both by 10 or more.
Examples of answers:
10/16
50/80
500/800 etc...
-1. 84 is -8 23/100 as a decimal
The new road is 4 1/3 miles
the dirt roads are :
2 3/8 + 3 5/6 =
2 + 3 = 5
3/8 + 5/6 = 18/48 + 40/48 = 58/48 = 29/24 = 1 5/24
5 + 1 5/24 = 6 5/24
so the difference is :
6 5/24 - 4 1/3 =
5 29/24 - 4 8/24 =
1 21/24 reduces to 1 7/8 <=== the difference is 1 7/8 mile...by taking the new road, u are traveling 1 7/8 miles less then if u take the dirt roads