{"id":90096,"date":"2022-03-29T12:04:10","date_gmt":"2022-03-29T06:34:10","guid":{"rendered":"https:\/\/bigideasmathanswers.com\/?p=90096"},"modified":"2022-04-07T14:37:52","modified_gmt":"2022-04-07T09:07:52","slug":"envision-math-common-core-grade-4-answer-key-topic-9","status":"publish","type":"post","link":"https:\/\/bigideasmathanswers.com\/envision-math-common-core-grade-4-answer-key-topic-9\/","title":{"rendered":"enVision Math Common Core Grade 4 Answer Key Topic 9 Understand Addition and Subtraction of Fractions"},"content":{"rendered":"

Practice with the help of enVision Math Common Core Grade 4 Answer Key<\/a> Topic 9 Understand Addition and Subtraction of Fractions<\/strong> regularly and improve your accuracy in solving questions.<\/p>\n

enVision Math Common Core 4th Grade Answers Key Topic 9 <\/span>Understand Addition and Subtraction of Fractions<\/span><\/h2>\n

Essential Questions:<\/strong><\/span>
\nHow do you add and subtract fractions and mixed numbers with like denominators?<\/span>
\nHow can fractions be added and subtracted on a number line?<\/span>
\n\"Envision<\/span>
\nAnswer:<\/span>
\nAdding and subtracting like denominators is simple as denominators<\/span>
\nare same we add numerators or subtract numerators.<\/span>
\nIn mixed numbers with like denominators we convert<\/span>
\nfirst mixed numbers into fractions then as denominators<\/span>
\nare same we add or subtract numerators,<\/span><\/p>\n

Explanation:<\/span>
\nAdding and subtracting like denominators is simple as denominators<\/span>
\nare same we add numerators or subtract numerators example<\/span>
\nlet’s take fractions as 5\/6 and 4\/6\u00a0 with like denominator 6 so<\/span>
\nfirst in addition we add numerators as 5 and 4 and denominator is<\/span>
\nsame 6 so result is (5 + 4)\/6 = 9\/6,<\/span>
\nIn subtraction we subtract numerators and denominator being same as<\/span>
\n(5 – 4)\/6 = 1\/6, Now in mixed fractions 5(3\/4) and 2(1\/4) first we convert<\/span>
\nmixed fractions into fractions as (5 X 4 + 3)\/ 4 = 23\/4 and (2 X 4 + 1)\/4 = 9\/4,<\/span>
\nnow we add numerators and denominator being same as (23 + 9 )\/4 = 32\/4,<\/span>
\nIn subtraction we subtract numerators and denominator being same as<\/span>
\n(23 – 9)\/4 = 14\/4.<\/span><\/p>\n

Any fractional number can be represented on a number line which is<\/span>
\nknown as fractions on the number line. Here we will see how to represent<\/span>
\nfraction on a number line. We will also see how to add or subtract with the<\/span>
\nhelp of a fraction number line.<\/span>
\nFollow the examples step-by-step how to add or subtract<\/span>
\nusing a fraction number line.<\/span>
\nCalculating the sum of 3\/10 + 4\/10 on the fraction number line as shown below<\/span><\/p>\n

\"Envision<\/span><\/div>\n
<\/div>\n

= 3\/10 + 4\/10 (as denominators are same we add numerators),<\/span>
\n= (3 + 4)\/10,<\/span>
\n= 7\/10,<\/span>
\nThe difference of 9\/10 and 7\/10,<\/span>
\n\"Envision<\/span><\/p>\n

9\/10 – 7\/10 (as denominators are same we subtract numerators),<\/span>
\n= 2\/10 or 2\/10 \u00f7 2\/2,<\/span>
\n= 1\/5 as shown above.<\/span><\/p>\n

Envision STEM Project: Fractions and Information Transfer<\/strong><\/span>
\nDo Research Morse code uses patterns to transfer information.<\/span>
\nAny word can be written using Morse code. Use the Internet or<\/span>
\nother sources to find how to write fourth, grade, and school using Morse code.<\/span>
\nJournal: Write a Report Include what you found. Also in your report:<\/span><\/p>\n