Respuesta :

1 3/4= 1 75/100
7/10= 70/100

1 75/100- 70/100=

1 5/100 or 1 1/20
make 1 3/4 into an irrational number(7/4) then you get 7/4 - 7/10. multiply the denominators by their opposite denominator and  get 70/40 - 28-40. Then subtract to get 42/40 and simplify to 21/20. Then get the final answer of 1 1/20 by making it a mixed number.

1 1/20

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