<?xml version="1.0" encoding="utf-8"?> <document> <s id="1"> <time id="T1S" value="00:00:00,200" /> <w id="1.1">Scriviamo</w> <w id="1.2">0</w> <w id="1.3">.</w> <w id="1.4">8</w> <w id="1.5">come</w> <w id="1.6">frazione</w> <w id="1.7">.</w> <time id="T1E" value="00:00:05,290" /> </s> <s id="2"> <time id="T2S" value="00:00:05,290" /> <w id="2.1">0</w> <w id="2.2">.</w> <w id="2.3">8</w> <w id="2.4">...</w> <w id="2.5">questo</w> <w id="2.6">8</w> <w id="2.7">sta</w> <w id="2.8">nel</w> <w id="2.9">posto</w> <w id="2.10">dei</w> <w id="2.11">decimi</w> <w id="2.12">,</w> <time id="T2E" value="00:00:09,865" /> <time id="T3S" value="00:00:09,865" /> <w id="2.13">quindi</w> <w id="2.14">puoi</w> <w id="2.15">leggerlo</w> <w id="2.16">come</w> <w id="2.17">8</w> <w id="2.18">decimi</w> <time id="T3E" value="00:00:14,041" /> <time id="T4S" value="00:00:14,041" /> <w id="2.19">e</w> <w id="2.20">possiamo</w> <w id="2.21">scriverlo</w> <w id="2.22">come</w> <w id="2.23">8/</w> <w id="2.24">10</w> <w id="2.25">,</w> <time id="T4E" value="00:00:18,939" /> <time id="T5S" value="00:00:18,939" /> <w id="2.26">cioè</w> <w id="2.27">8</w> <w id="2.28">su</w> <w id="2.29">10</w> <w id="2.30">.</w> <time id="T5E" value="00:00:21,554" /> </s> <s id="3"> <time id="T6S" value="00:00:21,554" /> <w id="3.1">Ora</w> <w id="3.2">è</w> <w id="3.3">scritto</w> <w id="3.4">come</w> <w id="3.5">frazione</w> <time id="T6E" value="00:00:23,424" /> <time id="T7S" value="00:00:23,424" /> <w id="3.6">e</w> <w id="3.7">se</w> <w id="3.8">vogliamo</w> <w id="3.9">possiamo</w> <w id="3.10">semplificarla</w> <w id="3.11">.</w> <time id="T7E" value="00:00:25,299" /> </s> <s id="4"> <time id="T8S" value="00:00:25,299" /> <w id="4.1">8</w> <w id="4.2">e</w> <w id="4.3">10</w> <w id="4.4">hanno</w> <w id="4.5">fattori</w> <w id="4.6">comuni</w> <w id="4.7">,</w> <w id="4.8">infatti</w> <w id="4.9">sono</w> <w id="4.10">divisibili</w> <w id="4.11">per</w> <w id="4.12">2</w> <w id="4.13">.</w> <time id="T8E" value="00:00:29,687" /> </s> <s id="5"> <time id="T9S" value="00:00:29,687" /> <w id="5.1">Dividiamo</w> <w id="5.2">sia</w> <w id="5.3">il</w> <w id="5.4">numeratore</w> <w id="5.5">che</w> <w id="5.6">il</w> <w id="5.7">denominatore</w> <w id="5.8">per</w> <w id="5.9">2</w> <w id="5.10">.</w> <time id="T9E" value="00:00:33,546" />