{"id":874,"date":"2023-09-27T08:18:24","date_gmt":"2023-09-27T08:18:24","guid":{"rendered":"http:\/\/localhost\/ecole9ja\/?p=874"},"modified":"2023-09-27T08:19:17","modified_gmt":"2023-09-27T08:19:17","slug":"week-10-jss-2-first-term-mathematics-lesson-notes","status":"publish","type":"post","link":"https:\/\/ecolebooks.com\/nigeria\/posts\/week-10-jss-2-first-term-mathematics-lesson-notes\/","title":{"rendered":"Week 10 – Jss 2 First Term Mathematics Lesson Notes"},"content":{"rendered":"

WEEK10\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0ALGERAIC FRACTIONS
\n<\/strong>
\n\u00a0To add or subtract fractions with different denominators, first change them to equivalent fractions. This is done by finding the L C M of the denominators
\nExample1<\/strong>: Simplify 2a\/5 + 4a\/3
\nSolution:
\n<\/strong>The L C M is 15
\n6a + 20a\/ 15 = 26a\/15
\nExample 2<\/strong>: Simplify 3\/5x + 1\/2x \u2013 1\/4x
\nSolution:
\n<\/strong>Find the L C M of the expression = 20X
\n12 + 10 \u2013 5 = 17\/20X<\/p>\n

\u00a0SIMPLIFYING FRACTION<\/p>\n

\u00a0Example 1<\/strong>: Reduce 25X4<\/sup>Y3<\/sup>\/35X3<\/sup>y3
\n\t\t\t\t<\/strong><\/sup>solution
\n<\/strong>Divide through by 5X3<\/sup>Y3<\/sup>(the common factor )
\n= 5x\/7
\nExample 2: Reduce 8X3<\/sup>Y2<\/sup>\/6X3<\/sup>Z
\nSolution:
\nDivide through by 2X 3<\/sup>(the common factor)
\n4Y2<\/sup>\/3Z<\/p>\n

\u00a0MULTIPLICATION AND DIVISION OF ALGEBRAIC FRACTION
\n<\/strong>
\n\u00a0Example 1: Simplfy (X-2)\/7 * 4\/(X-2)
\nSolution : X \u2013 2\/7 * 4\/ X -2 (X-2) divides themselves
\n= 4\/7
\nExample 2: Simplify 6X2<\/sup>\/11y \u00f7 18X\/33Y2 <\/sup>
\n\t\tSolution
\n6X2<\/sup>\/11y * 33Y2<\/sup>\/18X (division sign change to multiplication)
\n= XY<\/p>\n

\u00a0FRACTIONS WITH BRACKETS
\n<\/strong>Example1: simplify the following (a) 2x + 5\/4 + 2X \u2013 3 \/4 (b) 7X \u2013 2 \/4 + X \u2013 4 \/6
\nSolution:
\n(a). The L C M is 4
\n(2X + 5) + ( 2X \u2013 3)\/4
\n4x + 2\/4 = 2(2X + 1)\/4
\n= 2X + 1\/2<\/p>\n

\u00a0(b). 7X \u2013 2 \/4 + X \u2013 4 \/6
\nSolution:
\nThe L C M = 12
\n21x \u2013 6 + 2X \u2013 6 \u2013 8 \/ 12
\n= 23X \u2013 14\/ 12<\/p>\n

\u00a0ASSESEMENT: ESSENTIAL BOOK FOR JSS 2
\n<\/strong>EXERCISE 12.4 NO 7, 13, 19 & 20. PAGE 149
\n<\/strong>EXERCISE 12.6 NO 1, 2, 3 & 4. PAGE 151<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

WEEK10\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0ALGERAIC FRACTIONS \u00a0To add or subtract fractions with different denominators, first change them to equivalent…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,95],"tags":[],"class_list":["post-874","post","type-post","status-publish","format-standard","hentry","category-posts","category-first-term-jss-2-mathematics"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts\/874","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/comments?post=874"}],"version-history":[{"count":1,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts\/874\/revisions"}],"predecessor-version":[{"id":875,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts\/874\/revisions\/875"}],"wp:attachment":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/media?parent=874"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/categories?post=874"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/tags?post=874"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}