Sagot :
1) 3/5 = 21/35
35÷5=7
7×3=21
2) 90 : 54 = 1.8 : 3
90÷3=30
54÷30=1.8
1.) 3/5 = n/35
Divide 35 to 5
35 ÷ 5 = 7
Now we have 7, multiply it by 3
7 × 3 = 21
Final Answer:
n = 21
2.) 90 : 54 = n : 3
Turn the ratio into fractions
90 n
---- = ----
54 3
Divide
5 n
-- = --
3 3
Therefore, the answer is 5