Answer:
5 / 28
Step-by-step explanation:
5/7 ÷ 20/5
= 5/7 x 5/20
= (5 x 5) / (7 x 20)
= 25 / 140 (divide numerator and denominator by 5)
= 5 / 28
9/10 because that equals .9
Answer:
1 100
2 300
Step-by-step explanation:
There isn't really a formula for higher numbers. you can use a calculator with the square root function