No, 1 5th is 1/5 = 0.2. 10 20ths is 10/20 = 0/5 (or a half).
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It is easier to add two fractions together if you convertb them to the same values. You can convert both of these fractions to 20ths quite easily. 3/4 is equal to 15/20ths and 9/10ths is equal to 18/20ths, Simply add them together to find 15/20 + 19/20 = 34/20 now reduce this to a proper fraction... 1 and 14/20ths which can be simplfied to 1 and 7/10ths.
1/5 ÷ 1/10 = 1/5 × 10/1 = 10/5 = 2 There are 2 tenths in one fifth.
1 fifth of 250 is the same as 250/5=50
2/25
One half of a fifth is equivalent to one-tenth. To find one half of a number, you divide the number by 2. In this case, a fifth is equal to 1/5, so dividing 1/5 by 2 gives you 1/10, which is one-tenth.