Answer:
1. 5/16
2. 1/3
3. 3/91
4. 2 and 3/61
5. 7/64
Step-by-step explanation:
For I think all of these problems, I used KCF, you might know this already but, it's Keep, Change, Flip.
1. m ÷ n, place your values into the variables.
1/4 ÷ 4/5 We keep 1/4 the same, change ÷ to multiplication and flip 4/5 to 5/4
1/4 * 5/4 = multiply across. 5/16 we can't simplify.
2. 2/9 ÷ 4/6 = 2/9 * 6/4 = 12/36 and simplify that to 1/3. 12 can go into 36 three times.
3. For this, we need to get the variable r by itself. And to do that we do reverse order of operations. 13r is multiplication, so we divide both sides by 13 to get r by itself.
13r = 3/7 would be r= 3/91
4. We have to turn each fraction into a mixed number.
6 1/4 would equal 25/4 because we times 4 by 6, 24, and add the one, 25.
3 1/20 would equal 61/20
25/4 ÷ 61/20 = 500/4 = 125/61 = 2 and 3/61
5. We can put 8 over 1, 8/1
7/8 ÷ 8/1 then Keep, change, flip
7/8 * 1/8 multiply across
7/64