Sie suchten nach: add and subtracting with sig fig (Spanisch - Englisch)

los proyectos "add and pass" o "add, alter and return" están en la raíz del arte correo.
the projects "add and pass" or "add, alter and return" are in the root of mail art.

la introducción del editor era la siguiente:"we have strong faith that we will realize our aspiration to provide exceptional content in a magnificent vessel and to add and enhance from volume to volume, and that we will finish publishing all 16 volumes within five or six years and that the whole project will achieve its purpose.
in the publisher's introduction was written:we have strong faith that we will realize our aspiration to provide exceptional content in a magnificent vessel and to add and enhance from volume to volume, and that we will finish publishing all 16 volumes within five or six years and that the whole project will achieve its purpose.

then we have to express the equivalent fractions with this lowest common denominator: 2/3 + 4/5 = 2/15 + 2/15 to convert 2/3 in an equivalent fraction with 15 in the denominator, we have to consider that the denominator has been multiplied by 5 in this case, passing from 3 to 15, so the numerator must be multiplied by 5 too: 2*5= 10 and to convert 4/5 in an equivalent fraction with 15 in the denominator, we have to consider that the denominator has been multiplied by 3 in this case, passing from 5 to 15, so the numerator must be multiplied by 3 too: 4*3 = 12 this way, we are able to express the initial addition by using other two equivalent fractions that have the same denominator: 2/3 + 4/5 = 10/15 + 12/15 finally, we can add both fractions in the way that we already know (keeping the same denominator and adding the numerators up): 2/3 + 4/5 = 10/15 + 12/15 = 22/15 subtraction the procedure is the same that the one we have explained for the addition. we can directly subtract fractions having the same denominator, keeping the denominator unchanged and subtracting the numerators. for example:
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