Question

18/20 - 21/25 ? is how much /

Answer 1

Answer:

18÷20=0.9

21÷25=0.84

answer is 0.06

Answer 2

Answer:

18/20-21/25

then Lcm of 20and 25

Lcm=100

5(18)-4(21)/100

90-81/100

9/100

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