Answer:
80/140 = (80:20)/(140:20) = 4/7
4/7 = (4*4)/(7*4) = 16/28
4/7 = (4*5)/(7*5) = 20/35 not 20/28 not 20/32
4/7 = (4*5.5)/(7*5.5) = 22/38.5 not 22/37
Answer:
20/35, 16/28.
Step-by-step explanation:
80 / 5 / 140 / 5
= 16 / 28 (answer).
80 / 4 / 140 / 4
= 20 / 35 (answer).
