This is obvious, 2/10 is less than one
10/6 is more than 1 so
2/10<1<10/6
therfor 2/10 is less
the legit way to do it is
convert bottom numbers to same number
number is 30
2/10 times 3/3=6/10
10/6 times 5/5=50/30
6/10<50/30
distance= rate ÷ time
time= rate ÷ distance
time= 200 km/hr ÷ 1400 km
time= 1/7 hr or 0.1428... hr
I'm not sure, but it's probably that Mary bakes faster than Sarah?
I believe you do it like this:
1/2 Q+5/2
divide 1/2 into each term
to divide multiply by the reciprocal
1/2 x2/1= 1
5/2 x 2/1=5
1/2(Q+5)