A more simplified way to show this is 3/10
2/5=m/70
Use cross multiply
70*2=5*m
140=5m
Divided 5 to each side
140/5=5m/5
m=28
Check:
2/5=m/70
Substitute m with 28
2/5=28/70
2/5=4/10
2/5=2/5. As a result, m=28. Hope it help!
To find the improper fraction of 3 <u>1</u> , you have to multiply the denominator by
2
the whole number (2 x 3 = 6) and then add the numerator to that (6 + 1 = 7). Then you would put that number of the original denominator. The final result would be <u>7
</u> 2
4-0.5x=4-x
Add 0.5x for both side
4-0.5x+0.5x=4-x+0.5x
4=-0.5x+4
Subtract 4 for both side
4-4=-0.5x+4-4
0=-0.5x
Divide -0.5 for both side
0/-0.5=-0.5x/-0.5
0=x. As a result, x can not be negative in this problem. Hope it help!